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Dictionary-enhanced synonyms

Synonyms for “Fallacious” — 4 Other Ways to Say It

Based on a mistake or false reasoning; logically wrong even if it seems convincing.

IPA: /fəˈleɪʃəs/Level: C2Register: formalPart of speech: adj

Meaning of Fallacious

Based on a false or mistaken belief; logically invalid

How to Pronounce Fallacious

IPA: /fəˈleɪʃəs/ Stress: oOo

fə-LAY-shəs. Stress second syllable (LAY). Three syllables: fal-LA-cious.

Full pronunciation guide for fallacious →

4 Synonyms for Fallacious — Words Similar to Fallacious

Browse alternative words with their meaning, level, and a real example sentence so you pick the synonym that fits your context.

false

/fɔːls/
adj A1

Something that is not true or does not match what is real.

Example: That statement is false and not supported by evidence.

Smart Synonyms for Fallacious — When to Use Each

false

Not true without reasoned basis

unsound

Not logically valid emphasized flaw

invalid

Not legally binding or just

Antonyms of Fallacious — Opposite Words

How to Use Fallacious and Its Synonyms in Sentences

  • The fallacious reasoning in the advertisement appealed to emotion rather than logic. C2
  • Her fallacious conclusion ignored critical evidence that contradicted her thesis. C2
  • The fallacious argument mistakenly assumed all teenagers are irresponsible. C2

Common Word Choice Mistakes with Fallacious

Not natural: Another incorrect use of fallacious.

Better: Another correct use of fallacious.

See collocations for typical uses.

Frequently Asked Questions About Synonyms of Fallacious

What is another word for "fallacious"?

Common synonyms for "fallacious" include: false, incorrect, unsound, invalid.

What can I say instead of "fallacious"?

Try one of these alternatives: false, incorrect, unsound, invalid. Pick the synonym whose register and meaning fits your sentence — see the cards above for definitions and examples.

Is "fallacious" formal or informal?

"fallacious" is generally used in formal contexts. Use it in writing, business, and academic settings.

When should I use "fallacious" instead of "false"?

Use "fallacious" when you want to keep the exact nuance shown in the meaning section above; switch to "false" when you need a different register, level, or shade of meaning. Compare the cards above to decide.

What are the antonyms of "fallacious"?

Words with the opposite meaning of "fallacious" include: valid, sound, logical, correct.

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