January 25, 2026 - Synonyms for FALLACIOUS: unreasonable, irrational, unreasoning, illegitimate, misleading, unreasoned, illogical, absurd; Antonyms of FALLACIOUS: reasonable, logical, valid, rational, sound, wise, sensible, justified

Find 59 different ways to say FALLACIOUS, along with antonyms, related words, and example sentences at Thesaurus.com.

Synonyms for fallacious include false, erroneous, wrong, inaccurate, incorrect, misleading, untrue, specious, inexact and deceptive. Find more similar words at wordhippo.com!

Synonyms for FALLACIOUS: incorrect, wrong, mistaken, false, misleading, untrue, deceptive, spurious, fictitious, illogical, …

February 4, 2026 - The rumors were patently fallacious. ... Synonyms for fallacious from Random House Roget's College Thesaurus, Revised and Updated Edition © 2000 Random House, Inc.

5 days ago - Synonyms · erroneous formal · false (NOT CORRECT) incorrect · untrue · wrong (NOT CORRECT) Thesaurus: synonyms, antonyms, and examples · wrong · wrongThat's the wrong answer.

“fallacious reasoning” · synonyms: unsound · invalid · having no cogency or legal force · adjective based on an incorrect or misleading notion or information · “fallacious hope” · synonyms: incorrect, wrong · not correct; not in conformity with fact or truth ·

Synonyms: erroneous, incorrect, wrong, Thesaurus:false

Find 941 synonyms for Fallacious to improve your writing and expand your vocabulary.

Synonyms · Inclined to cause error · real honest misleading deceptive illusory delusive delusory illusive · Having an error or errors · off wrong correct false mistaken incorrect inaccurate untrue erroneous unsound · Master English with Ease · Translate words instantly and build your ...

Synonyms · STRONGEST · deception falsehood heresy inconsistency misinterpretation paradox untruth ·

fallacious - WordReference thesaurus: synonyms, discussion and more. All Free.

More 710 Fallacious synonyms. What are another words for Fallacious? False, erroneous, unsound, wrong. Full list of synonyms for Fallacious is here.

In the sense of based on mistaken beliefthe fallacious assumption underlying this reasoningSynonyms erroneous • false • untrue • wrong • incorrect • faulty • flawed • inaccurate • inexact • imprecise • mistaken • misinformed • misguided • misleading • deceptive • delusive • delusory • illusory • sophistic • specious • fictitious • spurious • fabricated • distorted • made up • trumped up • baseless • groundless • unfounded • foundationless • unsubstantiated • unproven • unsupported • uncorroborated • ill-founded • without basis • without foundation • bogus • phoney • iffy • dicey • full of holes • way off beam • dodgyOpposites true • correct

Browse the complete thesaurus entry for Fallacious, including synonyms and antonyms, and related words.

January 12, 2026 - Synonyms for FALLACY: delusion, myth, error, illusion, misconception, superstition, misunderstanding, falsehood; Antonyms of FALLACY: truth, verity, accuracy, correctness, actuality, genuineness, credibility, truthfulness

February 4, 2026 - Synonyms for fallacy from Random House Roget's College Thesaurus, Revised and Updated Edition © 2000 Random House, Inc. fall-off · fallacious · fallacious notion · fallaciousness · fallacy · fallen · fallen structure · fallibility · fallible · {{#randomImageQuizHook.filename}} {{#randomImageQuizHook.isQuiz}} Test your vocabulary with our fun image quizzes ·

Synonyms for fallacy include error, delusion, untruth, falsehood, falsity, misconception, misapprehension, illusion, misinterpretation and mistake. Find more similar words at wordhippo.com!

Find 5 different ways to say FALLACIOUS ARGUMENT, along with antonyms, related words, and example sentences at Thesaurus.com.

January 7, 2026 - Synonyms for FALLACIOUSLY: falsely, erroneously, hypocritically, mendaciously, insincerely, deceitfully, untruthfully, indirectly; Antonyms of FALLACIOUSLY: plainly, straightforwardly, directly, forthrightly, straight, straightforward, plain, openly