Word.ws English Dictionary

Synonyms of untrue

66 similar words · 9 opposite words

Another word for untrue is wrong. Other synonyms of untrue are false, double-dealing, double-crossing, double-faced and double-hearted. The opposite of untrue is true.

Synonyms and similar words for untrue

adjectiveFalse; not true.

adjectiveNot faithful or loyal.

  • perfidiousOf, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.
  • unfaithfulNot keeping good faith; disloyal; not faithful.
  • 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.
  • faithlessNot true to allegiance, duty, or vows.
  • false-heartedDisloyal, perfidious.
  • guilefulFull of guile; treacherously deceptive.
  • hollow-heartedInsincere; deceitful; treacherous; hypocritical.
  • infidelitousUnfaithful.
  • JudaslikeResembling or characteristic of Judas Iscariot; traitorous.
  • JudaslyJudaslike; traitorous.
  • nonfaithfulNot faithful.
  • 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.
  • unlealDisloyal.
  • unloyalNot loyal.
  • unsteadfastNot steadfast; wavering, unfaithful.
  • 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.

adjectiveMore synonyms

Opposite of untrue

adjectiveFalse; not true.

  • trueConforming to the actual state of reality or fact; factually correct.

adjectiveNot faithful or loyal.

adjectiveMore antonyms

Meaning of untrue

  1. adjective False; not true.
  2. adjective Not faithful or loyal.

Full definition of untrue

untrue in other languages

Questions about synonyms of untrue

What is another word for untrue?
Untrue has 66 synonyms on Word.ws, such as wrong, false, double-dealing, double-crossing, double-faced, double-hearted, false-hearted and hollow-hearted.
What is the opposite of untrue?
The opposite of untrue is true. Other antonyms of untrue are correct and right.
What does untrue mean?
Untrue means false; not true.

Source and license

Adapted from Wiktionary: untrue (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 untrue.” Word.ws, https://word.ws/synonyms/untrue. Based on Wiktionary, CC BY-SA 4.0.