false
adjective
1 he gave a false account of his movements:
incorrect, untrue, wrong, erroneous, fallacious, faulty, flawed, distorted, inaccurate, inexact, imprecise, invalid, unfounded;
untruthful, fictitious, concocted, fabricated, invented, made up, trumped up, unreal, counterfeit, forged, fraudulent, spurious, misleading, deceptive.
▷antonyms correct; truthful.
2 Briggs proved himself a false friend:
faithless, unfaithful, disloyal, untrue, inconstant, false-hearted, treacherous, traitorous, perfidious, two-faced, Janus-faced, double-dealing, double-crossing, deceitful, deceiving, deceptive, dishonorable, dishonest, duplicitous, hypocritical, untrustworthy, unreliable;
untruthful, lying, mendacious;
informal cheating, two-timing, backstabbing;
rare hollow-hearted, double-faced.
▷antonyms faithful.