not true or correct; erroneous: a false statement.
uttering or declaring what is untrue: a false witness.
not faithful or loyal; treacherous: a false friend.
tending to deceive or mislead; deceptive: a false impression.
not genuine; counterfeit.
based on mistaken, erroneous, or inconsistent impressions, ideas, or facts: false pride.
used as a substitute or supplement, especially temporarily: false supports for a bridge.
Biology. having a superficial resemblance to something that properly bears the name: the false acacia.
not properly, accurately, or honestly made, done, or adjusted: a false balance.
inaccurate in pitch, as a musical note.
adverb
dishonestly; faithlessly; treacherously: Did he speak false against me?
Idioms for false
play someone false, to betray someone; be treacherous or faithless.
Origin of false
First recorded before 1000; Middle English, Old English fals, from Latin falsus “feigned, false,” originally past participle of fallere “to deceive”; reinforced by or reborrowed from Anglo-French, Old French fals (feminine false ), from Latin
5. False,sham,counterfeit agree in referring to something that is not genuine. False is used mainly of imitations of concrete objects; it sometimes implies an intent to deceive: false teeth; false hair.Sham is rarely used of concrete objects and usually has the suggestion of intent to deceive: sham title; sham tears.Counterfeit always has the implication of cheating; it is used particularly of spurious imitation of coins, paper money, etc.