Word.ws English Dictionary

Synonyms of unfaithful

46 similar words

Another word for unfaithful is double-dealing. Other synonyms of unfaithful are double-crossing, double-faced, double-hearted, false-hearted and hollow-hearted.

Synonyms and similar words for unfaithful

adjectiveNot keeping good faith; disloyal; not faithful.

  • faithlessNot true to allegiance, duty, or vows.
  • nonfaithfulNot faithful.
  • unlealDisloyal.
  • bookyTreacherous, snitchy, not trustworthy.
  • dastardlyTreacherous; given to backstabbing.
  • disloyalNot loyal, without loyalty.
  • double-crossingWhich double-crosses.
  • double-dealingCheating, dishonest; treacherous.
  • double-facedDeceitful; hypocritical; treacherous.
  • double-heartedTreacherous.
  • doubleheartedDeceitful; treacherous; double-crossing.
  • false
  • false-heartedDisloyal, perfidious.
  • guilefulFull of guile; treacherously deceptive.
  • hollow-heartedInsincere; deceitful; treacherous; hypocritical.
  • infidelitousUnfaithful.
  • JudaslikeResembling or characteristic of Judas Iscariot; traitorous.
  • JudaslyJudaslike; traitorous.
  • perfidiousOf, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.
  • Punic figurativelyPerfidious, treacherous, faithless.
  • ratlikeResembling or characteristic of a rat, whether physically or (in behavioral terms) cunning, disloyal, or cowardly.
  • recreant literary, poeticUnfaithful to someone, or to one's duties or honour; disloyal, false.
  • renegadeDeserting, treacherous, disloyal.
  • reptilian figurativelyCold-blooded, treacherous, unavoidably selfish and hostile.
  • traitorishTraitorly; treasonous.
  • traitorlikeTraitorly.
  • traitorlyLike a traitor; traitorous.
  • traitorousCharacteristic of a traitor; disloyal.
  • traitorsomeCharacteristic of a traitor; traitorous.
  • treacherous
  • treachersomeCharacterised or marked by treachery; treacherous.
  • unloyalNot loyal.
  • unsteadfastNot steadfast; wavering, unfaithful.
  • untrueNot faithful or loyal.
  • viperishSpiteful; treacherous.
  • viperousVenomous, malicious or treacherous.
  • disleal obsoleteDisloyal; perfidious.
  • falseheart obsoleteSynonym of false-hearted.
  • guiled archaicArmed with deceit; treacherous.
  • illoyal obsoleteDisloyal.
  • insidious nonstandardTreacherous.
  • proditorious obsoleteTreacherous, traitorous.
  • proditory obsoleteTreacherous, traitorous.
  • reptitious figuratively, obsoleteSynonym of reptilian: reptilelike, (figuratively) cold-blooded, treacherous.
  • swike dialectal, obsoleteDeceitful; treacherous.
  • trothless archaic, poeticUntrustworthy, treacherous.

Meaning of unfaithful

  1. adjective Not having religious faith.
  2. adjective Not keeping good faith; disloyal; not faithful.
  3. adjective Adulterous.

Full definition of unfaithful

unfaithful in other languages

Questions about synonyms of unfaithful

What is another word for unfaithful?
Unfaithful has 46 synonyms on Word.ws, such as double-dealing, double-crossing, double-faced, double-hearted, false-hearted, hollow-hearted, renegade and untrue.
What does unfaithful mean?
Unfaithful means not having religious faith.

Source and license

Adapted from Wiktionary: unfaithful (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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Cite this page: “Synonyms of unfaithful.” Word.ws, https://word.ws/synonyms/unfaithful. Based on Wiktionary, CC BY-SA 4.0.