12-letter words ending with L
Dive into the specific realm of 12-letter words that conclude with the letter L. This focused section reveals the fascinating ways in which words of this particular length, ending with L, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| professional | 17 | a person engaged in one of the learned professions | - |
| instrumental | 14 | serving or acting as a means or aid | instrumental in solving the crime |
| intellectual | 14 | of or associated with or requiring the use of the mind | intellectual problems |
| confidential | 18 | (of information) given in confidence or in secret | this arrangement must be kept confidential |
| presidential | 15 | befitting a president | criticized the candidate for not looking presidential |
| supernatural | 14 | supernatural forces and events and beings collectively | She doesn't believe in the supernatural |
| experimental | 23 | relying on observation or experiment | experimental results that supported the hypothesis |
| conventional | 17 | represented in simplified or symbolic form | - |
| mathematical | 21 | relating to or having ability to think in or work with numbers | a mathematical whiz |
| heterosexual | 22 | a person having a sexual orientation to persons of the opposite sex | - |
| agricultural | 15 | relating to farming or agriculture | an agrarian (or agricultural) society |
| hypocritical | 24 | professing feelings or virtues one does not have | hypocritical praise |
| astronomical | 16 | inconceivably large | - |
| unsuccessful | 19 | failing to accomplish an intended result | - |
| pathological | 20 | of or relating to the practice of pathology | pathological laboratory |
| hypothetical | 25 | based primarily on surmise rather than adequate evidence | hypothetical situation |
| correctional | 16 | concerned with or providing correction | a correctional institution |
| neurological | 15 | of or relating to or used in or practicing neurology | neurological evidence |
| confessional | 17 | a booth where a priest sits to hear confessions | - |
| governmental | 18 | relating to or dealing with the affairs or structure of government or politics or the state | governmental policy |
| metaphysical | 24 | highly abstract and overly theoretical | metaphysical reasoning |
| occupational | 18 | of or relating to the activity or business for which you are trained | occupational hazard |
| recreational | 14 | engaged in as a pastime | recreational golfers |
| astrological | 15 | relating to or concerned with astrology | astrological chart |
| mythological | 23 | based on or told of in traditional stories; lacking factual basis or historical validity | - |
| alphabetical | 21 | arranged in order according to the alphabet | dictionaries list words in alphabetical order |
| differential | 19 | a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves | - |
| coincidental | 17 | occurring or operating at the same time | - |
| motivational | 17 | of or relating to motivation | - |
| geographical | 21 | determined by geography | - |
| departmental | 17 | of or relating to a department | departmental policy |
| metaphorical | 21 | expressing one thing in terms normally denoting another | a metaphorical expression |
| navigational | 16 | of or relating to navigation | navigational aids |
| sociological | 17 | of or relating to or determined by sociology | sociological studies |
| extramarital | 21 | characterized by adultery | extramarital affairs |
| hydrothermal | 24 | - | - |
| proportional | 16 | properly related in size or degree or other measurable characteristics; usually followed by `to' | the punishment ought to be proportional to the crime |
| transitional | 12 | of or relating to or characterized by transition | adolescence is a transitional stage between childhood and adulthood |
| asymmetrical | 21 | irregular in shape or outline | asymmetrical features |
| cosmological | 19 | pertaining to the branch of astronomy dealing with the origin and history and structure and dynamics of the universe | cosmological redshift |
| hierarchical | 22 | classified according to various criteria into successive levels or layers | it has been said that only a hierarchical society with a leisure class at the top can produce works of art |
| geopolitical | 17 | of or relating to geopolitics | - |
| preferential | 17 | manifesting partiality | preferential tariff rates |
| intracranial | 14 | within the skull | - |
| biographical | 22 | of or relating to or being biography | biographical data |
| whippoorwill | 25 | American nocturnal goatsucker with grey-and-white plumage | - |
| nonessential | 12 | not of prime or central importance | nonessential to the integral meanings of poetry |
| invitational | 15 | pertaining to or characteristic of an invitation | - |
| noncommittal | 18 | refusing to bind oneself to a particular course of action or view or the like | her boyfriend was noncommittal about their future together |
| aeronautical | 14 | of or pertaining to aeronautics | - |
| pumpernickel | 24 | bread made of coarse rye flour | - |
| radiological | 16 | of or relating to radiology | - |
| generational | 13 | of or relating to a generation | - |
| scatological | 17 | dealing pruriently with excrement and excretory functions | scatological literature |
| psychosexual | 29 | of or relating to the mental or emotional attitudes about sexuality | - |
| providential | 18 | peculiarly fortunate or appropriate; as if by divine intervention | a providential recovery |
| gladiatorial | 14 | of or relating to or resembling gladiators or their combat | gladiatorial combats |
| bicentennial | 16 | of or relating to or completing a period of 200 years | bicentennial celebration |
| supplemental | 18 | functioning in a supporting capacity | - |
| multilingual | 15 | using or knowing more than one language | a multilingual translator |
| oligarchical | 20 | of or relating to or supporting or characteristic of an oligarchy | - |
| professorial | 17 | relating to or characteristic of professors | professorial demeanor |
| foundational | 16 | - | - |
| genealogical | 16 | of or relating to genealogy | genealogical records |
| histological | 18 | of or relating to histology | - |
| anticlerical | 16 | - | - |
| quarterfinal | 24 | one of the four competitions in an elimination tournament whose winners go on to play in the semifinals | - |
| pestilential | 14 | likely to spread and cause an epidemic disease | a pestilential malignancy in the air |
| glockenspiel | 21 | a percussion instrument consisting of a set of graduated metal bars mounted on a frame and played with small hammers | - |
| interglacial | 15 | - | - |
| antithetical | 17 | sharply contrasted in character or purpose | practices entirely antithetical to her professed beliefs |
| prototypical | 21 | representing or constituting an original type after which other similar things are patterned | - |
| unthoughtful | 22 | not exhibiting or characterized by careful thought | - |
| premenstrual | 16 | of or relating to or occurring during the period just before menstruation | - |
| hydrological | 22 | - | - |
| supraorbital | 16 | located or occurring above the eye socket | - |
| neoclassical | 16 | characteristic of a revival of an earlier classical style | - |
| processional | 16 | religious music used in a procession | - |
| ethnological | 18 | of or relating to ethnology | ethnological field work |
| interstitial | 12 | of or relating to interstices | - |
| depositional | 15 | - | - |
| semiofficial | 22 | having some official authority or sanction | - |
| uneconomical | 18 | wasteful of resources | - |
| multilateral | 14 | having many parts or sides | - |
| postprandial | 17 | following a meal (especially dinner) | his postprandial cigar |
| postdoctoral | 17 | a grant that funds postdoctoral study or research | - |
| epigraphical | 22 | - | - |
| epicycloidal | 22 | - | - |
| epideictical | 19 | designed primarily for rhetorical display | - |
| entoplastral | 14 | - | - |
| epexegetical | 24 | - | - |
| erotological | 15 | - | - |
| endochondral | 19 | - | - |
| endoskeletal | 17 | - | - |
| endotracheal | 18 | - | - |
| enarthrodial | 16 | - | - |
| enterococcal | 18 | - | - |
| enterostomal | 14 | - | - |
| enharmonical | 19 | - | - |
| exospherical | 26 | - | - |
| exorcistical | 23 | - | - |
| experiential | 21 | derived from experience or the experience of existence | the rich experiential content of the teachings of the older philosophers |
| expediential | 22 | - | - |
| extralimital | 21 | - | - |
| extralogical | 22 | - | - |
| extracranial | 21 | - | - |
| expressional | 21 | - | - |
| expositional | 21 | - | - |
| etymological | 20 | based on or belonging to etymology | I merely drew an etymological distinction |
| etonogestrel | 13 | - | - |
| euphuistical | 19 | - | - |
| eurhythmical | 25 | - | - |
| eulogistical | 15 | - | - |
| excavational | 24 | - | - |
| euroterminal | 14 | - | - |
| fissirostral | 15 | - | - |
| fissilingual | 16 | - | - |
| extratextual | 26 | - | - |
| extramusical | 23 | - | - |
| fluorouracil | 17 | an antimetabolite used to treat certain cancers | - |
| forestaysail | 18 | - | - |
| foresightful | 22 | planning prudently for the future | - |
| grallatorial | 13 | - | - |
| gemmological | 20 | - | - |
| genethliacal | 18 | - | - |
| gasometrical | 17 | - | - |
| geanticlinal | 15 | - | - |
| geodynamical | 21 | - | - |
| geognostical | 16 | - | - |
| geocentrical | 17 | - | - |
| geobotanical | 17 | - | - |
| geotechnical | 20 | - | - |
| geosynclinal | 18 | - | - |
| haematocryal | 22 | - | - |
| hagiological | 19 | - | - |
| habitational | 17 | - | - |
| histrionical | 17 | - | - |
| homeothermal | 22 | - | - |
| hierological | 18 | - | - |
| horometrical | 19 | - | - |
| homeotypical | 24 | - | - |
| heroicomical | 21 | - | - |
| heterodactyl | 21 | (of bird feet) having the first and second toes directed backward the third and fourth forward | - |
| heterocercal | 19 | possessing a tail with the upper lobe larger than the lower and with the vertebral column prolonged into the upper lobe | - |
| hemorrhoidal | 21 | - | - |
| hendecagonal | 19 | - | - |
| hexametrical | 26 | - | - |
| hexobarbital | 26 | - | - |
| heterosocial | 17 | - | - |
| hyperthermal | 25 | of or relating to or affected by hyperthermia | - |
| hypersensual | 20 | - | - |
| hyperspatial | 22 | - | - |
| hypertypical | 27 | - | - |
| hypnological | 23 | - | - |
| hyperdulical | 23 | - | - |
| ichnological | 20 | - | - |
| hypostatical | 22 | - | - |
| hyperarousal | 20 | - | - |
| hyperbolical | 24 | - | - |
| hymnological | 23 | - | - |
| impressional | 16 | - | - |
| inartificial | 17 | - | - |
| imbibitional | 18 | - | - |
| iconological | 17 | - | - |
| impedimental | 19 | - | - |
| imperatorial | 16 | - | - |
| immethodical | 22 | - | - |
| infraorbital | 17 | - | - |
| inflectional | 17 | characterized by inflections indicating grammatical distinctions | inflectional morphology is used to indicate number and case and tense and person etc. |
| inhalational | 15 | - | - |
| inharmonical | 19 | - | - |
| infanticidal | 18 | - | - |
| insecticidal | 17 | of or relating to insecticide | - |
| inspectional | 16 | - | - |
| inspectorial | 16 | - | - |
| innovational | 15 | being or producing something like nothing done or experienced or created before | a mind so innovational, so original |
| incubational | 16 | - | - |
| indicational | 15 | - | - |
| interpleural | 14 | - | - |
| interpluvial | 17 | - | - |
| interorbital | 14 | - | - |
| internuncial | 14 | - | - |
| intracardial | 15 | - | - |
| intonational | 12 | - | - |
| intertextual | 19 | - | - |
| interspatial | 14 | - | - |
| interspersal | 14 | the act of combining one thing at intervals among other things | - |
| interstadial | 13 | - | - |
| interchannel | 17 | - | - |
| intercoastal | 14 | - | - |
| integumental | 15 | of or relating to the integument | - |
| interlingual | 13 | - | - |
| interfluvial | 18 | - | - |
| interfrontal | 15 | - | - |
| interdigital | 14 | - | - |
| interfemoral | 17 | - | - |
| judicatorial | 22 | - | - |
| karyological | 22 | - | - |
| karyotypical | 26 | - | - |
| kilometrical | 20 | - | - |
| invocational | 17 | - | - |
| involutional | 15 | - | - |
| iodometrical | 17 | - | - |
| irrigational | 13 | - | - |
| irrotational | 12 | - | - |
| isobilateral | 14 | having identical parts on each side of an axis | - |
| isocheimenal | 19 | - | - |
| irreciprocal | 18 | - | - |
| divinatorial | 16 | - | - |
| distortional | 13 | - | - |
| ditheistical | 18 | - | - |
| ditheletical | 18 | - | - |
| dorsiventral | 16 | - | - |
| dorsolateral | 13 | - | - |
| dorsoventral | 16 | extending from the back to the belly | - |
| dodecahedral | 20 | - | - |
| donatistical | 15 | - | - |
| disregardful | 18 | - | - |
| emigrational | 15 | - | - |
| emblematical | 20 | serving as a visible symbol for something abstract | - |
| dunniewassal | 16 | - | - |
| duodecennial | 16 | - | - |
| echinodermal | 20 | - | - |
| barometrical | 18 | relating to atmospheric pressure or indicated by a barometer | - |
| bactericidal | 19 | preventing infection by inhibiting the growth or action of microorganisms | - |
| aspirational | 14 | - | - |
| autochthonal | 20 | originating where it is found | the autochthonal fauna of Australia includes the kangaroo |
| autocratical | 16 | - | - |
| asymptotical | 21 | - | - |
| atheological | 18 | - | - |
| atheoretical | 17 | - | - |
| audiological | 16 | - | - |
| biogenetical | 17 | - | - |
| biotechnical | 21 | - | - |
| bifunctional | 19 | - | - |
| bimillennial | 16 | - | - |
| biodynamical | 22 | - | - |
| barristerial | 14 | - | - |
| battological | 17 | - | - |
| bibliothecal | 21 | of or relating to a library or bibliotheca or a librarian | - |
| bicollateral | 16 | - | - |
| cabalistical | 18 | - | - |
| cacophonical | 23 | - | - |
| cancellarial | 16 | - | - |
| brachycephal | 29 | - | - |
| brachydactyl | 28 | - | - |
| centroclinal | 16 | - | - |
| characterful | 22 | - | - |
| cataphysical | 24 | - | - |
| catechumenal | 21 | - | - |
| catechetical | 21 | of or relating to or involving catechesis | - |
| carpological | 19 | - | - |
| cartological | 17 | - | - |
| chorological | 20 | - | - |
| chlorambucil | 23 | an alkylating agent (trade name Leukeran) used to treat some kinds of cancer | - |
| commentarial | 18 | - | - |
| commissarial | 18 | - | - |
| commissional | 18 | - | - |
| complemental | 20 | acting as or providing a complement (something that completes the whole) | - |
| complimental | 20 | - | - |
| componential | 18 | - | - |
| complexional | 25 | - | - |
| cliometrical | 18 | - | - |
| coenobitical | 18 | of or relating to or befitting cenobites or their practices of communal living | - |
| consistorial | 14 | - | - |
| conjunctival | 26 | of or relating to the conjunctiva | - |
| connectional | 16 | - | - |
| conjunctural | 23 | - | - |
| conceptional | 18 | being of the nature of a notion or concept | a plan abstract and conceptional |
| concentrical | 18 | having a common center | - |
| concessional | 16 | - | - |
| conferential | 17 | - | - |
| confraternal | 17 | - | - |
| congenerical | 17 | belonging to the same genus | - |
| conductional | 17 | - | - |
| conductorial | 17 | - | - |
| cosmogonical | 19 | pertaining to the branch of astronomy dealing with the origin and history and structure and dynamics of the universe | - |
| cotangential | 15 | - | - |
| contractural | 16 | - | - |
| contrasexual | 21 | - | - |
| contrapuntal | 16 | having two or more independent but harmonically related melodic parts sounding together | - |
| contubernyal | 19 | - | - |
| contortional | 14 | - | - |
| conversional | 17 | - | - |
| convectional | 19 | - | - |
| convulsional | 17 | - | - |
| convictional | 19 | - | - |
| cybernetical | 21 | - | - |
| curvirostral | 17 | - | - |
| cytoskeletal | 21 | - | - |
| cytochemical | 26 | - | - |
| craniosacral | 16 | - | - |
| craniofacial | 19 | - | - |
| counterspell | 16 | - | - |
| cryptococcal | 25 | - | - |
| cryosurgical | 20 | - | - |
| deflectional | 18 | - | - |
| definitional | 16 | - | - |
| democratical | 19 | - | - |
| declensional | 15 | - | - |
| dedicatorial | 16 | - | - |
| dedicational | 16 | - | - |
| diagnostical | 16 | - | - |
| diapophysial | 23 | - | - |
| diarthrodial | 17 | - | - |
| dentilingual | 14 | - | - |
| dentirostral | 13 | - | - |
| descensional | 15 | - | - |
| derivational | 16 | characterized by inflections indicating a semantic relation between a word and its base | the morphological relation between `sing' and `singer' and `song' is derivational |
| discretional | 15 | having or using the ability to act or decide according to your own discretion or judgment | - |
| discussional | 15 | - | - |
| digressional | 14 | - | - |
| dilatational | 13 | - | - |
| difunctional | 18 | - | - |
| diplomatical | 19 | using or marked by tact in dealing with sensitive matters or people | - |
| angiospermal | 17 | - | - |
| anaglyptical | 20 | related to anaglyphs or anaglyphy | - |
| anapaestical | 16 | - | - |
| anaptyctical | 21 | - | - |
| anchoretical | 19 | - | - |
| anchoritical | 19 | - | - |
| anthological | 18 | - | - |
| anteprandial | 15 | - | - |
| anthropoidal | 18 | resembling apes | - |
| annexational | 19 | relating to annexation | - |
| antediluvial | 16 | of or relating to the period before the biblical flood | - |
| anaglyphical | 23 | related to anaglyphs or anaglyphy | - |
| alphamerical | 21 | of or pertaining to alphanumeric characters | - |
| altimetrical | 16 | - | - |
| amygdaloidal | 20 | shaped like an almond | - |
| anachronical | 19 | - | - |
| amianthoidal | 18 | - | - |
| aquaceutical | 25 | - | - |
| aquacultural | 23 | of or relating to aquiculture | aquacultural methods |
| aquicultural | 23 | of or relating to aquiculture | - |
| appositional | 16 | relating to or being in apposition | - |
| archetypical | 24 | representing or constituting an original type after which other similar things are patterned | - |
| archesporial | 19 | of or relating to the cells in a sporangium that give rise to spores | - |
| arithmetical | 19 | relating to or involving arithmetic | arithmetical computations |
| antimalarial | 14 | a medicinal drug used to prevent or treat malaria | - |
| antiparallel | 14 | (especially of vectors) parallel but oppositely directed | antiparallel vectors |
| antiphonical | 19 | - | - |
| antinational | 12 | - | - |
| anticolonial | 14 | - | - |
| anticultural | 14 | - | - |
| apologetical | 17 | - | - |
| apodeictical | 19 | - | - |
| apoplectical | 20 | - | - |
| apparitional | 16 | resembling or characteristic of a phantom | - |
| antirational | 12 | - | - |
| apfelstrudel | 18 | - | - |
| aberrational | 14 | - | - |
| aetiological | 15 | of or relating to the philosophical study of causation | - |
| aerostatical | 14 | - | - |
| adventureful | 19 | - | - |
| agrochemical | 22 | - | - |
| agrichemical | 22 | - | - |
| accusatorial | 16 | specifically indicating a form of prosecution in which one is publicly accused of and tried for a crime and in which the judge is not also the prosecutor | - |
| adjustmental | 22 | - | - |
| adaptational | 15 | of or relating to adaptation | - |
| acroamatical | 18 | - | - |
| acupunctural | 18 | - | - |
| repetitional | 14 | - | - |
| reflectional | 17 | - | - |
| redemptional | 17 | of or relating to or resulting in redemption | - |
| revelational | 15 | - | - |
| retinotectal | 14 | - | - |
| rhinological | 18 | - | - |
| rhombohedral | 23 | having threefold symmetry | - |
| rhinorrhoeal | 18 | - | - |
| rhopaloceral | 19 | - | - |
| revolutional | 15 | - | - |
| rheumatismal | 19 | - | - |
| rhinocerical | 19 | - | - |
| rheometrical | 19 | - | - |
| reputational | 14 | - | - |
| responsorial | 14 | - | - |
| scientifical | 19 | - | - |
| scholastical | 19 | - | - |
| schistosomal | 19 | - | - |
| schismatical | 21 | of or relating to or involved in or characteristic of schism | - |
| salutational | 12 | - | - |
| saccharoidal | 20 | - | - |
| septilateral | 14 | - | - |
| seriocomical | 18 | mixing the serious with the comic with comic predominating | - |
| sericultural | 14 | of or relating to sericulture | sericultural industry |
| semitropical | 18 | of or relating to or characteristic of conditions in the subtropics | - |
| semiological | 17 | - | - |
| servocontrol | 17 | - | - |
| semimystical | 21 | - | - |
| secobarbital | 18 | barbiturate that is a white odorless slightly bitter powder (trade name Seconal) used as a sodium salt for sedation and to treat convulsions | - |
| semaphorical | 21 | - | - |
| semiarboreal | 16 | - | - |
| semicolonial | 16 | - | - |
| solecistical | 16 | - | - |
| sinistrorsal | 12 | spiraling upward from right to left | - |
| sprachgefuhl | 26 | an intuitive feeling for the natural idiom of a language | Dubyuh has no sprachgefuhl |
| squirearchal | 26 | - | - |
| speciational | 16 | - | - |
| sophomorical | 21 | - | - |
| spermathecal | 21 | - | - |
| spermatozoal | 25 | - | - |
| sphincterial | 19 | - | - |
| spectatorial | 16 | - | - |
| subcelestial | 16 | - | - |
| subfactorial | 19 | - | - |
| subepidermal | 19 | - | - |
| subeditorial | 15 | - | - |
| studdingsail | 15 | - | - |
| subabdominal | 19 | - | - |
| sternocostal | 14 | - | - |
| stenothermal | 17 | - | - |
| strabismical | 18 | - | - |
| stigmasterol | 15 | - | - |
| stilboestrol | 14 | a potent estrogen used in medicine and in feed for livestock and poultry | - |
| superfrontal | 17 | - | - |
| superhumeral | 19 | - | - |
| superhelical | 19 | - | - |
| superglacial | 17 | - | - |
| superspecial | 18 | - | - |
| supersensual | 14 | - | - |
| superordinal | 15 | - | - |
| superluminal | 16 | - | - |
| suboccipital | 20 | - | - |
| subprincipal | 20 | - | - |
| successional | 16 | - | - |
| subvertebral | 19 | - | - |
| substantival | 17 | of or relating to or having the nature or function of a substantive (i.e. a noun or noun equivalent) | a substantival constituent |
| talismanical | 16 | - | - |
| taphonomical | 21 | - | - |
| systematical | 19 | - | - |
| telemetrical | 16 | - | - |
| teleological | 15 | of or relating to teleology | - |
| tautological | 15 | repetition of same sense in different words | the phrase `a beginner who has just started' is tautological |
| teaspoonsful | 17 | - | - |
| suspensorial | 14 | - | - |
| supracrustal | 16 | - | - |
| supraglottal | 15 | - | - |
| supraliminal | 16 | - | - |
| synaptosomal | 19 | - | - |
| synchronical | 22 | - | - |
| symbological | 22 | - | - |
| thiodiglycol | 22 | - | - |
| theosophical | 22 | of or relating to theosophy | theosophical writings |
| timocratical | 18 | - | - |
| tenuirostral | 12 | - | - |
| telescopical | 18 | - | - |
| telesmatical | 16 | - | - |
| televisional | 15 | - | - |
| theocratical | 19 | - | - |
| tetrachordal | 18 | - | - |
| tetrastichal | 17 | - | - |
| tetrarchical | 19 | - | - |
| transvaginal | 16 | - | - |
| transnatural | 12 | - | - |
| triglyphical | 23 | - | - |
| triphthongal | 21 | - | - |
| tribological | 17 | - | - |
| trichogynial | 21 | - | - |
| tragicomical | 19 | manifesting both tragic and comic aspects | - |
| transcranial | 14 | - | - |
| unartificial | 17 | - | - |
| unbeneficial | 19 | - | - |
| ultrasensual | 12 | - | - |
| unanalytical | 17 | - | - |
| uncommercial | 20 | not conducive to commercial success | might prove arty and hence uncommercial |
| ultraradical | 15 | - | - |
| tropological | 17 | - | - |
| trypanosomal | 19 | - | - |
| trypanocidal | 20 | - | - |
| trochanteral | 17 | - | - |
| tyrannicidal | 18 | - | - |
| ultraliberal | 14 | - | - |
| ultracareful | 17 | - | - |
| tubulifloral | 17 | - | - |
| pugilistical | 17 | - | - |
| psychosocial | 24 | - | - |
| quadrinomial | 24 | - | - |
| quadriennial | 22 | - | - |
| quaquaversal | 33 | - | - |
| pyritohedral | 21 | - | - |
| pyrocatechol | 24 | - | - |
| pyrochemical | 26 | of or relating to or produced by chemical reactions at high temperatures | - |
| pyrometrical | 21 | - | - |
| pyromaniacal | 21 | - | - |
| prosopopeial | 18 | - | - |
| protectorial | 16 | - | - |
| prosectorial | 16 | - | - |
| pseudopodial | 18 | - | - |
| protonematal | 16 | - | - |
| protoplasmal | 18 | - | - |
| protreptical | 18 | - | - |
| rectirostral | 14 | - | - |
| quasicrystal | 26 | - | - |
| quinquennial | 30 | - | - |
| unecological | 17 | - | - |
| unmechanical | 21 | (of a person) lacking mechanical skills | - |
| unhysterical | 20 | - | - |
| unhistorical | 17 | - | - |
| undelightful | 20 | - | - |
