FAITHLESS

adj. 1 sceptical, doubting, unbelieving, disbelieving, agnostic, atheistic, freethinking Faithless wretches are called Doubting Thomases 2 unfaithful, disloyal, treacherous, traitorous, perfidious, shifting, shifty, fickle, inconstant, untrustworthy, unreliable, false, hypocritical, insincere, dishonest, false, crooked, unscrupulous, conscienceless, recreant: With faithless friends like her, who needs enemies?