Synonyms of unfaithful

Adjective

1. unfaithful (vs. faithful), apostate, punic, perfidious, treacherous, untrue, inconstant, untrustworthy#1, untrusty

usage: not true to duty or obligation or promises; "an unfaithful lover"

2. unfaithful (vs. faithful), adulterous, cheating(prenominal), two-timing(prenominal)

usage: having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend; "her husband was unfaithful"

3. faithless, traitorous, unfaithful, treasonable, treasonous, disloyal (vs. loyal)

usage: having the character of, or characteristic of, a traitor; "the faithless Benedict Arnold"; "a lying traitorous insurrectionist"

4. unfaithful, inaccurate (vs. accurate)

usage: not trustworthy; "an unfaithful reproduction"

Definition and meaning of unfaithful (Dictionary)