false
1 concocted, erroneous, faulty, fictitious, improper, inaccurate, incorrect, inexact, invalid, mistaken, unfounded, unreal, wrong
2 lying, mendacious, truthless, unreliable, unsound, untrue, untrustworthy, untruthful
3 artificial, bogus, counterfeit, ersatz, fake, feigned, forged, imitation, mock, pretended, pseudo (informal) sham, simulated, spurious, synthetic
4 deceitful, deceiving, deceptive, delusive, fallacious, fraudulent, hypocritical, misleading, trumped up
5 dishonest, dishonourable, disloyal, double-dealing, duplicitous, faithless, false-hearted, hypocritical, perfidious, treacherous, treasonable, two-faced, unfaithful, untrustworthy
6 play (someone) false betray (informal) stab in the back (informal) loyal