14-letter words with U in the middle
Delve into the fascinating world of words where the letter U is nestled in the middle. This section highlights the unique placement of U in various words, illustrating how it contributes to their sound and meaning. From everyday language to more unusual terms, discover how U in the middle shapes the essence of these words.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| communications | 22 | the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.) | communications is his major field of study |
| superintendent | 17 | a caretaker for an apartment house; represents the owner as janitor and rent collector | - |
| pharmaceutical | 25 | of or relating to pharmacy or pharmacists | the pharmaceutical industry |
| simultaneously | 19 | at the same instant | they spoke simultaneously |
| constitutional | 16 | existing as an essential constituent or characteristic | a constitutional inability to tell the truth |
| reconstruction | 18 | recall that is hypothesized to work by storing abstract features which are then used to construct the memory during recall | - |
| infrastructure | 19 | the basic structure or features of a system or organization | - |
| congratulation | 17 | (usually plural) an expression of pleasure at the success or good fortune of another | I sent them my sincere congratulations on their marriage |
| claustrophobic | 25 | suffering from claustrophobia; abnormally afraid of closed-in places | - |
| slaughterhouse | 21 | a building where animals are butchered | - |
| circumstantial | 20 | fully detailed and specific about particulars | a circumstantial report about the debate |
| indestructible | 19 | very long lasting | - |
| intellectually | 19 | in an intellectual manner | intellectually gifted children |
| fundamentalist | 20 | of or relating to or characteristic of Protestant fundamentalism or its adherents | - |
| congratulating | 18 | - | - |
| groundbreaking | 23 | the ceremonial breaking of the ground to formally begin a construction project | - |
| subconsciously | 23 | from the subconscious mind | the image came to him subconsciously |
| multiplication | 20 | the act of producing offspring or multiplying by such production | - |
| distinguishing | 20 | - | - |
| accountability | 23 | responsibility to someone or for some activity | - |
| malfunctioning | 22 | not performing or able to perform its regular function | a malfunctioning valve |
| claustrophobia | 23 | a morbid fear of being closed in a confined space | - |
| industrialized | 25 | made industrial; converted to industrialism | industrialized areas |
| cardiovascular | 22 | of or pertaining to or involving the heart and blood vessels | cardiovascular conditioning |
| excommunicated | 30 | - | - |
| revolutionized | 27 | - | - |
| miscalculation | 20 | a mistake in calculating | - |
| superstructure | 18 | structure consisting of the part of a ship above the main deck | - |
| overpopulation | 21 | too much population | - |
| sustainability | 19 | the property of being sustainable | - |
| hallucinogenic | 22 | capable of producing hallucinations | LSD is a powerful hallucinogenic drug |
| insurmountable | 18 | impossible to surmount | - |
| quintessential | 23 | representing the perfect example of a class or quality | - |
| counterculture | 18 | a culture with lifestyles and values opposed to those of the established culture | - |
| mountaineering | 17 | the activity of climbing a mountain | - |
| nebuchadnezzar | 40 | (Old Testament) king of Chaldea who captured and destroyed Jerusalem and exiled the Israelites to Babylonia (630?-562 BC) | - |
| reconstructive | 21 | helping to restore to good condition | reconstructive surgery |
| redistribution | 17 | distributing again | the revolution resulted in a redistribution of wealth |
| deconstruction | 19 | a philosophical theory of criticism (usually of literature or film) that seeks to expose deep-seated contradictions in a work by delving below its surface meaning | - |
| thoughtfulness | 24 | kind and considerate regard for others | - |
| congratulatory | 20 | expressive of sympathetic pleasure or joy on account of someone's success or good fortune | a congratulatory telegram |
| fundamentalism | 22 | a form of Protestantism that takes the interpretation of every word in the sacred texts as literal truth | - |
| excruciatingly | 29 | in a very painful manner | - |
| revolutionised | 18 | - | - |
| supernaturally | 19 | in a supernatural manner | - |
| susceptibility | 23 | the state of being susceptible; easily affected | - |
| authentication | 19 | a mark on an article of trade to indicate its origin and authenticity | - |
| countermeasure | 18 | an action taken to offset another action | - |
| exsanguination | 22 | - | - |
| counterbalance | 20 | contrast with equal weight or force | - |
| conjunctivitis | 28 | inflammation of the conjunctiva of the eye | - |
| licentiousness | 16 | dissolute indulgence in sensual pleasure | - |
| linguistically | 20 | with respect to language | linguistically impaired children |
| reconstitution | 16 | - | - |
| rebelliousness | 16 | intentionally contemptuous behavior or attitude | - |
| circumnavigate | 24 | travel around, either by plane or ship | - |
| individualized | 29 | made for or directed or adjusted to a particular individual | - |
| jurisdictional | 24 | restricted to the geographic area under a particular jurisdiction | the jurisdictional limits of a state |
| beautification | 21 | the act of making something more beautiful | - |
| geosynchronous | 23 | of or having an orbit with a fixed period of 24 hours (although the position in the orbit may not be fixed with respect to the earth) | - |
| naturalisation | 14 | changing the pronunciation of a borrowed word to agree with the borrowers' phonology | - |
| staphylococcus | 28 | spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections | - |
| bioluminescent | 20 | (of living organisms) emitting light | fireflies are bioluminescent |
| voluptuousness | 19 | the quality of having a well-rounded body | - |
| verisimilitude | 20 | the appearance of truth; the quality of seeming to be true | - |
| fortunetelling | 18 | the practice of predicting people's futures (usually for payment) | - |
| neutralization | 23 | (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) | - |
| neuroscientist | 16 | a neurobiologist who specializes in the study of the brain | - |
| ridiculousness | 17 | a message whose content is at variance with reason | - |
| insufficiently | 25 | to an insufficient degree | he was insufficiently prepared |
| horticulturist | 19 | an expert in the science of cultivating plants (fruit or flowers or vegetables or ornamental plants) | - |
| constructively | 24 | in a constructive manner | it is my task to look critically and constructively at the flaws and the failures |
| lasciviousness | 19 | feeling morbid sexual desire or a propensity to lewdness | - |
| naturalization | 23 | changing the pronunciation of a borrowed word to agree with the borrowers' phonology | the naturalization in English of many Italian words |
| oversubscribed | 24 | sold in excess of available supply especially season tickets | the opera season was oversubscribed |
| orthomolecular | 21 | designating or relating to a form of treatment of mental disorders that seeks to restore biochemical balance in the body with large doses of vitamins and minerals | orthomolecular medicine |
| outrageousness | 15 | the quality of being outrageous | - |
| persuasiveness | 19 | the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty | - |
| superficiality | 24 | lack of depth of knowledge or thought or feeling | - |
| capriciousness | 20 | the trait of acting unpredictably and more from whim or caprice than from reason or judgment | - |
| dehumanization | 29 | the act of degrading people with respect to their best qualities | science has been blamed for the dehumanization of modern life |
| discouragement | 20 | the feeling of despair in the face of obstacles | - |
| disarticulated | 18 | - | - |
| disillusioning | 16 | freeing from illusion or false belief | - |
| extemporaneous | 25 | with little or no preparation or forethought | an extemporaneous piano recital |
| obsequiousness | 25 | abject or cringing submissiveness | - |
| mysteriousness | 19 | - | - |
| neurobiologist | 17 | a specialist in neurobiology | - |
| neuropathology | 23 | - | - |
| overstimulated | 20 | - | - |
| overproduction | 22 | too much production or more than expected | - |
| precariousness | 18 | being unsettled or in doubt or dependent on chance | the precariousness of his income |
| popularization | 27 | the act of making something attractive to the general public | - |
| pressurization | 25 | - | - |
| redistributing | 18 | - | - |
| superannuation | 16 | the property of being out of date and not current | - |
| businesspeople | 20 | people who transact business (especially business executives) | - |
| discolouration | 17 | a soiled or discolored appearance | - |
| circumlocution | 22 | a style that involves indirect ways of expressing things | - |
| conceptualized | 30 | - | - |
| conservatorium | 21 | - | - |
| meticulousness | 18 | strict attention to minute details | - |
| noncommutative | 23 | - | - |
| overindulgence | 21 | excessive indulgence | the child was spoiled by overindulgence |
| obstructionist | 18 | someone who systematically obstructs some action that others want to take | - |
| preposterously | 21 | so as to arouse or deserve laughter | - |
| proceleusmatic | 22 | - | - |
| quantitatively | 29 | in a quantitative manner | this can be expressed quantitatively |
| suggestibility | 21 | susceptibility or responsiveness to suggestion | - |
| substantiation | 16 | the act of validating; finding or testing the truth of something | - |
| supersensitive | 19 | having an allergy or peculiar or excessive susceptibility (especially to a specific factor) | - |
| industrialised | 16 | made industrial; converted to industrialism | - |
| immunoglobulin | 21 | a class of proteins produced in lymph tissue in vertebrates and that function as antibodies in the immune response | - |
| inscrutability | 21 | the quality of being impossible to investigate | the inscrutability of the future |
| autosuggestion | 16 | a system for self-improvement developed by Emile Coue which was popular in the 1920s and 1930s | - |
| disequilibrium | 28 | loss of equilibrium attributable to an unstable situation in which some forces outweigh others | - |
| diverticulosis | 20 | presence of multiple diverticula in the walls of the colon | - |
| fastidiousness | 18 | the trait of being meticulous about matters of taste or style | neatness and fastidiousness of dress |
| gregariousness | 16 | the quality of being gregarious--having a dislike of being alone | - |
| hippopotamuses | 25 | - | - |
| circumspection | 24 | the trait of being circumspect and prudent | - |
| coquettishness | 28 | - | - |
| constructivism | 23 | an abstractionist artistic movement in Russia after World War I; industrial materials were used to construct nonrepresentational objects | - |
| troubleshooter | 19 | a worker whose job is to locate and fix sources of trouble (especially in mechanical devices) | - |
| tranquillizing | 33 | tending to soothe or tranquilize | - |
| manipulability | 23 | the quality of being controllable by skilled movements of the hands | - |
| marvellousness | 19 | - | - |
| mariculturists | 18 | - | - |
| manipulatively | 24 | in an artfully manipulative manner | - |
| manrikigusaris | 21 | - | - |
| manufacturable | 23 | - | - |
| manufacturings | 22 | - | - |
| matriculations | 18 | - | - |
| meaningfulness | 20 | the quality of having great value or significance | - |
| measurableness | 18 | - | - |
| measurednesses | 17 | - | - |
| mastigophorous | 22 | - | - |
| malacophyllous | 26 | - | - |
| malacostracous | 20 | - | - |
| magniloquently | 29 | in a rhetorically grandiloquent manner | the orator spoke magniloquently |
| magniloquences | 28 | - | - |
| maladjustments | 26 | - | - |
| malodorousness | 17 | the attribute of having a strong offensive smell | - |
| malpighiaceous | 24 | - | - |
| mangoldwurzels | 30 | - | - |
| metacomputings | 23 | - | - |
| mesenchymatous | 26 | - | - |
| mercifulnesses | 21 | - | - |
| mercurialising | 19 | - | - |
| mercurialities | 18 | - | - |
| mercurializing | 28 | - | - |
| meretriciously | 21 | in a meretricious manner | the boat is meretriciously decorated |
| metalinguistic | 19 | - | - |
| megalosaurians | 17 | - | - |
| megalosauruses | 17 | - | - |
| mendaciousness | 19 | - | - |
| mercaptopurine | 22 | a drug (trade name Purinethol) that interferes with the metabolism of purine and is used to treat acute lymphocytic leukemia | - |
| megasporangium | 22 | a plant structure that produces megaspores | - |
| megastructures | 19 | - | - |
| melastomaceous | 20 | - | - |
| macrostructure | 20 | - | - |
| leukemogenesis | 21 | - | - |
| libidinousness | 17 | - | - |
| leukodystrophy | 30 | - | - |
| liebfraumilchs | 26 | - | - |
| lieutenantries | 14 | - | - |
| lieutenantship | 19 | - | - |
| linguisticians | 17 | - | - |
| liposculptures | 20 | - | - |
| lignocellulose | 17 | - | - |
| lignosulfonate | 18 | - | - |
| leukemogeneses | 21 | - | - |
| laudablenesses | 17 | - | - |
| laughingstocks | 25 | - | - |
| latitudinarian | 15 | unwilling to accept authority or dogma (especially in religion) | - |
| lecythidaceous | 25 | - | - |
| leptocephalous | 23 | - | - |
| leptodactylous | 22 | - | - |
| leucitohedrons | 20 | - | - |
| leucocythaemia | 26 | - | - |
| leucocytolyses | 24 | - | - |
| leucocytolysis | 24 | - | - |
| leucocytopenia | 23 | - | - |
| luminousnesses | 16 | - | - |
| lusciousnesses | 16 | - | - |
| lustrousnesses | 14 | - | - |
| luteinisations | 14 | - | - |
| luteinizations | 23 | - | - |
| macroevolution | 21 | evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groups | - |
| macroglobulins | 21 | - | - |
| macromolecular | 22 | relating to or consisting of or characterized by macromolecules | macromolecular compounds |
| macromolecules | 22 | - | - |
| macronutrients | 18 | - | - |
| macrodactylous | 24 | - | - |
| machinegunning | 23 | - | - |
| macrocephalous | 25 | having an exceptionally large head and brain | - |
| lumbersomeness | 20 | - | - |
| liturgiologies | 16 | - | - |
| liturgiologist | 16 | - | - |
| loathfulnesses | 20 | - | - |
| lubberlinesses | 18 | - | - |
| lucklessnesses | 20 | - | - |
| lugubriousness | 17 | the quality of excessive mournfulness and uncheerfulness | - |
| loquaciousness | 25 | the quality of being wordy and talkative | - |
| logodaedaluses | 17 | - | - |
| longitudinally | 19 | in the direction of the length | - |
| longsufferings | 22 | - | - |
| lukewarmnesses | 23 | - | - |
| monogamousness | 19 | the practice or state of having only one spouse at a time | - |
| modulabilities | 19 | - | - |
| molecularities | 18 | - | - |
| moneygrubbings | 25 | - | - |
| monolingualism | 19 | - | - |
| mononucleotide | 19 | - | - |
| mispersuasions | 18 | - | - |
| mispronouncing | 21 | - | - |
| mispunctuating | 21 | - | - |
| mispunctuation | 20 | - | - |
| misinstructing | 19 | - | - |
| misinstruction | 18 | - | - |
| mismeasurement | 20 | - | - |
| misunderstands | 18 | - | - |
| misutilisation | 16 | - | - |
| misutilization | 25 | - | - |
| mockumentaries | 24 | - | - |
| multicomponent | 22 | - | - |
| multifrequency | 33 | - | - |
| multilaterally | 19 | in a multilateral manner;so as to affect many parties or governments | - |
| multilingually | 20 | - | - |
| multilinguists | 17 | - | - |
| multiloquences | 27 | - | - |
| multimegawatts | 22 | - | - |
| multimolecular | 20 | - | - |
| multinationals | 16 | - | - |
| multiformities | 21 | - | - |
| multifoliolate | 19 | - | - |
| multiconductor | 21 | - | - |
| multicuspidate | 21 | - | - |
| multidialectal | 19 | - | - |
| multielectrode | 19 | - | - |
| multiemployers | 23 | - | - |
| multifactorial | 21 | involving or depending on several factors or causes (especially pertaining to a condition or disease resulting from the interaction of many genes) | - |
| multifariously | 22 | in diverse ways | - |
| multifilaments | 21 | - | - |
| multinucleated | 19 | - | - |
| multiparameter | 20 | - | - |
| multipartyisms | 23 | - | - |
| multithreading | 21 | - | - |
| multivalencies | 21 | - | - |
| multiversities | 19 | - | - |
| multivibrators | 21 | - | - |
| mummifications | 25 | - | - |
| mundifications | 22 | - | - |
| municipalising | 21 | - | - |
| municipalities | 20 | - | - |
| multiskillings | 21 | - | - |
| multireligious | 17 | - | - |
| multiplicative | 23 | tending or having the power to multiply or increase in number or quantity or degree | the multiplicative tendency of proportional representation |
| multiplicators | 20 | - | - |
| multiplicities | 20 | - | - |
| multipotential | 18 | - | - |
| multipresences | 20 | - | - |
| multiprocessor | 20 | a computer that uses two or more processing units under integrated control | - |
| multiracialism | 20 | - | - |
| municipalizing | 30 | - | - |
| multicharacter | 23 | - | - |
| mordaciousness | 19 | - | - |
| monotonousness | 16 | - | - |
| monounsaturate | 16 | - | - |
| monstruosities | 16 | - | - |
| monumentalised | 19 | - | - |
| monumentalises | 18 | - | - |
| monumentalized | 28 | - | - |
| monumentalizes | 27 | - | - |
| mucilaginously | 22 | - | - |
| mucomembranous | 24 | - | - |
| mucoviscidoses | 24 | - | - |
| mucoviscidosis | 24 | the most common hereditary disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known | - |
| muddleheadedly | 26 | - | - |
| mulligatawnies | 20 | - | - |
| multarticulate | 18 | - | - |
| mouthbreathers | 24 | - | - |
| mouldabilities | 19 | - | - |
| mountainboards | 19 | - | - |
| mountebankings | 23 | - | - |
| mountebankisms | 24 | - | - |
| mournfulnesses | 19 | - | - |
| multichambered | 26 | - | - |
| microcomputers | 24 | - | - |
| microcomputing | 25 | - | - |
| microevolution | 21 | evolution resulting from small specific genetic changes that can lead to a new subspecies | - |
| microcircuitry | 25 | - | - |
| microcephalous | 25 | having an abnormally small head and underdeveloped brain | - |
| micronucleuses | 20 | - | - |
| micronutrients | 18 | - | - |
| microminiature | 20 | - | - |
| methoxyflurane | 32 | - | - |
| meticulosities | 18 | - | - |
| misattributing | 19 | - | - |
| misattribution | 18 | - | - |
| miscalculating | 21 | - | - |
| miscalculators | 20 | - | - |
| misassumptions | 20 | - | - |
| misarticulates | 18 | - | - |
| misarticulated | 19 | - | - |
| miscomputation | 22 | - | - |
| misevaluations | 19 | - | - |
| misfunctioning | 22 | - | - |
| misgovernaunce | 22 | - | - |
| miscounselling | 19 | - | - |
| misconjectured | 28 | - | - |
| misconjectures | 27 | - | - |
| misconstructed | 21 | - | - |
| microstomatous | 20 | - | - |
| microstructure | 20 | - | - |
| microsurgeries | 19 | - | - |
| microtechnique | 32 | - | - |
| micropublisher | 25 | - | - |
| micropulsation | 20 | - | - |
| micropunctures | 22 | - | - |
| miraculousness | 18 | - | - |
| mirthfulnesses | 22 | - | - |
| misadventurers | 20 | - | - |
| misadventurous | 20 | - | - |
| nonhomogeneous | 20 | - | - |
| nonhomosexuals | 26 | - | - |
| nonfunctioning | 20 | - | - |
| nonfilamentous | 19 | - | - |
| nonfluorescent | 19 | - | - |
| nonforfeitures | 20 | - | - |
| nonfulfillment | 22 | - | - |
| nonnitrogenous | 15 | - | - |
| nonintercourse | 16 | - | - |
| nonjudgemental | 25 | - | - |
| nonjusticiable | 25 | - | - |
| noncultivation | 19 | - | - |
| noncontractual | 18 | - | - |
| nonconsumptive | 23 | - | - |
| nonconsecutive | 21 | - | - |
| nonconsumption | 20 | - | - |
| nondelinquents | 24 | - | - |
| noneducational | 17 | - | - |
| nonequilibrium | 27 | - | - |
| nondocumentary | 22 | - | - |
| nondestructive | 20 | - | - |
| nondisclosures | 17 | - | - |
| nondisjunction | 24 | meiosis in which there is a failure of paired homologous chromosomes to separate; results in an abnormal number of chromosomes in the daughter cells | - |
| nonequivalence | 28 | not interchangeable | - |
| nontherapeutic | 21 | - | - |
| nuclearisation | 16 | - | - |
| nuclearization | 25 | - | - |
| nonutilitarian | 14 | - | - |
| nucleoproteins | 18 | - | - |
| nudibranchiate | 22 | - | - |
| nugatorinesses | 15 | - | - |
| obduratenesses | 17 | - | - |
| nyctaginaceous | 22 | - | - |
| nullifications | 19 | - | - |
| numberlessness | 18 | - | - |
| numerabilities | 18 | - | - |
| numerousnesses | 16 | - | - |
| numinousnesses | 16 | - | - |
| numismatically | 23 | - | - |
| nutraceuticals | 18 | - | - |
| nutritiousness | 14 | the quality of being nourishing and promoting healthy growth | - |
| nonoccurrences | 20 | - | - |
| nonspectacular | 20 | - | - |
| nonspeculative | 21 | - | - |
| nonsupervisory | 22 | - | - |
| nonsynchronous | 22 | not occurring together | - |
| nonreturnables | 16 | - | - |
| nebulousnesses | 16 | - | - |
| nectareousness | 16 | - | - |
| neglectfulness | 20 | the trait of neglecting responsibilities and lacking concern | - |
| nauseousnesses | 14 | - | - |
| neighbourhoods | 24 | - | - |
| munificentness | 21 | - | - |
| musicalisation | 18 | - | - |
| musicalization | 27 | - | - |
| musselcrackers | 24 | - | - |
| mutagenicities | 19 | - | - |
| mutinousnesses | 16 | - | - |
| mutualisations | 16 | - | - |
| mutualizations | 25 | - | - |
| myrmecophagous | 29 | feeding on ants | myrmecophagous squirrel |
| myrmecophilous | 28 | living symbiotically with ants | - |
| nonbarbiturate | 18 | - | - |
| nonacquisitive | 28 | - | - |
| noctambulation | 20 | walking by a person who is asleep | - |
| nocturnalities | 16 | - | - |
| nonaccountable | 20 | - | - |
| nonconclusions | 18 | - | - |
| noncombustible | 22 | not capable of igniting and burning | - |
| nonchurchgoers | 25 | - | - |
| noncirculating | 19 | - | - |
| nonconcurrence | 20 | - | - |
| neurocognitive | 20 | - | - |
| neurocomputers | 20 | - | - |
| neurocomputing | 21 | - | - |
| neuroendocrine | 17 | of or relating to the nervous and endocrine systems (especially as they function together) | - |
| neurofeedbacks | 26 | - | - |
| neurofibrillar | 19 | - | - |
| neurofibromata | 21 | - | - |
| neurogenically | 20 | - | - |
| neurochemistry | 24 | - | - |
| neurochemicals | 23 | - | - |
| neuraminidases | 17 | - | - |
| neurastheniacs | 19 | - | - |
| neuroanatomies | 16 | - | - |
| neuroanatomist | 16 | - | - |
| neurobiologies | 17 | - | - |
| neuroblastomas | 18 | - | - |
| neurohypnology | 26 | - | - |
| neurolinguists | 15 | - | - |
| neurologically | 20 | - | - |
| nightclubbings | 25 | - | - |
| nitrobacterium | 20 | any of the bacteria in the soil that take part in the nitrogen cycle; they oxidize ammonium compounds into nitrites or oxidize nitrites into nitrates | - |
| nitrocellulose | 16 | a nitric acid ester; used in lacquers and explosives | - |
| neutralisation | 14 | (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) | - |
| neuromarketing | 21 | marketing based on studies of consumers' sensorimotor, cognitive, and affective responses | - |
| neuroradiology | 19 | - | - |
| neurosecretion | 16 | - | - |
| neurosecretory | 19 | - | - |
| neurosurgeries | 15 | - | - |
| neurypnologies | 20 | - | - |
| overencourages | 20 | - | - |
| overenthusiasm | 22 | - | - |
| overevaluation | 20 | - | - |
| overencouraged | 21 | - | - |
| overeducations | 20 | - | - |
| overfulfilling | 24 | - | - |
| overfullnesses | 20 | - | - |
| overgenerously | 21 | - | - |
| overflourishes | 23 | - | - |
| overflourished | 24 | - | - |
| overfastidious | 21 | - | - |
| overburdensome | 22 | - | - |
| overburthening | 23 | - | - |
| overadjustment | 27 | - | - |
| overarticulate | 19 | - | - |
| overdiscounted | 21 | - | - |
| overdocumented | 23 | - | - |
| overconstructs | 21 | - | - |
| oversaturating | 18 | - | - |
| oversaturation | 17 | - | - |
| overscrupulous | 21 | - | - |
| overregulation | 18 | - | - |
| overregulating | 19 | - | - |
| oversolicitous | 19 | excessively solicitous | - |
| oversuspicious | 21 | unduly suspicious | - |
| overvaluations | 20 | - | - |
| oxidoreductase | 25 | an enzyme that catalyzes oxidation-reduction | - |
| oversubtleties | 19 | - | - |
| oversubscribes | 23 | - | - |
| overspeculated | 22 | - | - |
| overspeculates | 21 | - | - |
| overstimulates | 19 | - | - |
| overstructured | 20 | - | - |
| overinsurances | 19 | - | - |
| overmaturities | 19 | - | - |
| overmultiplied | 22 | - | - |
| overmultiplies | 21 | - | - |
| overpersuading | 21 | - | - |
| overpersuasion | 19 | - | - |
| overpopulating | 22 | - | - |
| overparticular | 21 | - | - |
| overmultituded | 21 | - | - |
| overmultitudes | 20 | - | - |
| overnourishing | 21 | - | - |
| overnutritions | 17 | - | - |
| overaccentuate | 21 | - | - |
| oncornaviruses | 19 | - | - |
| oracularnesses | 16 | - | - |
| orbicularities | 18 | - | - |
| opisthocoelous | 21 | - | - |
| occupationally | 23 | - | - |
| odontoglossums | 18 | - | - |
| obstreperously | 21 | in manner that attracts attention | obstreperously, he demanded to get service |
| obstructionism | 20 | deliberate interference | - |
| omnivorousness | 19 | - | - |
| ombudsmanships | 26 | - | - |
| oleaginousness | 15 | consisting of or covered with oil | - |
| osmoregulatory | 20 | - | - |
| ostentatiously | 17 | with ostentation; in an ostentatious manner | Mr Khrushchev ostentatiously wooed and embraced Castro at the U.N. general assembly |
| osteodermatous | 17 | - | - |
| osmoregulation | 17 | - | - |
| ostreicultures | 16 | - | - |
| outpoliticking | 23 | - | - |
| outrecuidances | 19 | - | - |
| outreproducing | 20 | - | - |
| outsettlements | 16 | - | - |
| outsidernesses | 15 | - | - |
| outmodednesses | 18 | - | - |
| outmanoeuvring | 20 | - | - |
| outdatednesses | 16 | - | - |
| outfangthieves | 24 | - | - |
| outgeneralling | 16 | - | - |
| outgoingnesses | 16 | - | - |
| outlandishness | 18 | strikingly out of the ordinary | - |
| outmaneuvering | 20 | - | - |
