Synonyms of faithless in English:

faithless


See definition of faithless

adjective

1‘she left her faithless lover’

SYNONYMS
unfaithful, disloyal, inconstant, false, false-hearted, untrue, adulterous, traitorous, treacherous, perfidious, fickle, flighty, untrustworthy, unreliable, undependable, deceitful, deceiving, two-faced, Janus-faced, double-dealing, double-crossing
informal cheating, two-timing, back-stabbing
rare double-faced
ANTONYMS

faithful

2‘the natives were ungodly and faithless’

SYNONYMS
unbelieving, non-believing, irreligious, without religious faith, disbelieving, doubting, sceptical, agnostic, atheistic, non-theistic
pagan, heathen
rare nullifidian