1. (n.) The quality of being untrue; contrariety to truth; want of veracity; also, treachery; faithlessness; disloyalty.

2. (n.) That which is untrue; a false assertion; a falsehood; a lie; also, an act of treachery or disloyalty.

aberrancy aberration blague canard cock-and-bull story defectiveness delusion deviancy distortion errancy erroneousness error exaggeration fairy tale fallaciousness fallacy falsehood falseness falsity farfetched story farrago fault faultiness fib fiction fish story flam flaw flawedness flimflam ghost story half-truth hamartia heresy heterodoxy illusion inveracity legal fiction lie little white lie mendacity misapplication misconstruction misdoing misfeasance misinterpretation misjudgment misrepresentation peccancy perversion pious fiction prevarication self-contradiction sin sinfulness slight stretching story tale tall story tall tale taradiddle trumped-up story truthlessness unorthodoxy untrueness untruthfulness white lie yarn