Synonyms of truthless

1 Syllable

wide, wrong, sham, off

2 Syllables

disloyal, untrue, recreant, spurious, forsworn, lying, unloyal, faithless, unsound, deviant, specious, false, hollow

3 Syllables

traitorous, deceitful, incorrect, erroneous, inconstant, mistaken, treacherous, fallacious, two-faced, misleading, untruthful, perjured, perfidious, inexact, dissembling, fictitious, distorted, unfaithful

4 Syllables

untrustworthy, delusive, meretricious, deceptive, imprecise, counterfactual

5 Syllables

inaccurate, prevaricating