Synonyms of false
70 similar words · 2 opposite words
Another word for false is untrue. Other synonyms of false are counterfeit, spurious, erroneous, fallacious and nonfactual. The opposite of false is true.
Synonyms and similar words for false
adjectiveUntrue, not factual, factually incorrect.
- erroneousDerived from an error.
- fallaciousCharacterized by fallacy; false or mistaken.
- bastard
- counterfactual
- off
- counterfeitFalse, especially of money; intended to deceive or carry appearance of being genuine.
- fictitiousInvented; contrived.
- inaccurateMistaken or incorrect; not accurate.
- incorrect
- inventedFictional, made up, imaginary.
- made up
- nonfactualNot factual; false or fictional.
- nontrueNot true.
- nontruthfulNot truthful.
- pseudo-
- spuriousFalse, not authentic, not genuine.
- untrueFalse; not true.
- untruthful
- unveraciousNot veracious; untruthful; false.
- unveridicalNot veridical.
- wrong
verbTo violate, to betray (a promise, an agreement, one’s faith, etc.).
- double-crossTo betray or go back on; to deceive someone after having gained their trust and led them to believe that they were...
- falsifyTo alter so as to make false; especially when done with intent to deceive.
- sell outTo betray (a person), usually a close friend or family member, for personal gain.
- assfuck Canada, USTo betray.
- betrayTo prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive.
- burn slangTo betray; to con or rob.
- cop out slangTo abandon, let down or betray (someone).
- cross out slangTo lie to or betray (someone); to deceive or scam (someone).
- cross up Canada, USTo double-cross or betray (someone).
- do someone dirtyTo deliberately treat someone in an unfair or harmful manner.
- do the dirty on Australia, UKTo treat (someone) in an unfair manner; to cheat or betray.
- go back onTo be treacherous or faithless to; to betray.
- knifeTo betray, especially in the context of a political slate.
- let downTo disappoint; to betray or fail somebody.
- play someone falseTo betray someone; to be disloyal to someone.
- sellTo betray for money or other things.
- sell the pass IrelandTo betray one's comrades or countrymen; to betray a cause.
- sell down the riverTo betray, especially in a manner which causes serious difficulty for the one betrayed.
- sell downTo betray a person; to conspire against someone for personal gain.
- stab in the backTo betray (somebody).
- traitorizeTo be a traitor to; betray.
- turncoatTo act as a turncoat; to betray.
- quisle rareTo collaborate with an (occupying) enemy power; be a quisling.
- renegade datedTo desert one's cause, or change one's loyalties; to commit betrayal.
- swike dialectal, obsoleteTo deceive, cheat; betray.
adverbIn a dishonest and disloyal way; falsely.
- dastardlyIn a cowardly or treacherous fashion.
- insincerelyIn an insincere manner.
- traitorwiseIn the manner of a traitor; traitorously.
- dishonestlyIn a dishonest manner.
- falsefullyIn a falseful manner: falsely.
- falselyIn a false manner.
- illegitimatelyIn an illegitimate manner.
- truthlesslyWithout truth; falsely.
- underhand
- underhandedIn an underhanded manner.
- underhandedlyIn an underhanded manner.
- unsincerely
- untrulyIn an untrue manner.
- untruthfullyIn an untruthful manner; falsely.
- disloyallyIn a disloyal manner.
- JudaslyIn a manner resembling Judas Iscariot; traitorously.
- perfidiouslyIn a perfidious manner.
- ratlikeIn a ratlike way.
- traitorouslyIn a traitorous manner; treacherously.
- treacherouslyIn a treacherous manner.
- unfaithfullyIn an unfaithful manner.
- proditoriously obsoleteIn a proditorious manner; treacherously, traitorously.
- traitorly obsoleteTraitorously.
adjectiveMore synonyms
Opposite of false
Meaning of false
- adjective Untrue, not factual, factually incorrect.
- adjective Based on factually incorrect premises.
- adjective Spurious, artificial.
false in other languages
Questions about synonyms of false
- What is another word for false?
- False has 70 synonyms on Word.ws, such as untrue, counterfeit, spurious, erroneous, fallacious, nonfactual, unveracious and invented.
- What is the opposite of false?
- The opposite of false is true. Other antonyms of false are real.
- What does false mean?
- False means untrue, not factual, factually incorrect.
Source and license
Adapted from Wiktionary: false (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.
Last updated:
Cite this page: “Synonyms of false.” Word.ws, https://word.ws/synonyms/false. Based on Wiktionary, CC BY-SA 4.0.