Fast

adjective

fæst

Adjective

unwavering in devotion to friend or vow or cause
“fast friends”
Similar:Firm LoyalTruehearted
hurried and brief
“a fast visit”
Similar:Flying Quick
unrestrained by convention or morality
“fast women”
Similar:DebauchedDegenerateDegradedDissipatedDissolute
acting or moving or capable of acting or moving quickly
“fast film”
“on the fast track in school”
“set a fast pace”
See also:HurriedSudden
(of surfaces) conducive to rapid speeds
“a fast road”
“grass courts are faster than clay”
at a rapid tempo
“the band played a fast fox trot”
(of a photographic lens or emulsion) causing a shortening of exposure time
“a fast lens”
resistant to destruction or fading
“fast colors”
securely fixed in place
Similar:Firm Immobile

abstain from certain foods, as for religious or medical reasons
“Catholics sometimes fast during Lent”
Type of:DesistRefrainAbstain
abstain from eating
“Before the medical exam, you must fast”
Type of:DesistAbstainRefrain

firmly or closely
“held fast to the rope”
“her foot was stuck fast”
Similar:Tight

(used of timepieces) indicating a time ahead of or later than the correct time
“my watch is fast”