- Definitions|2
- Thesaurus|2k
- Abbreviations|0
44 entries under illogical topic. ×
| groundless(adjective, reason, foolish, true, crazy) | |
| unsound(adjective, wrong, fake, false, counterfeit) | |
| baseless(adjective, false, foolish, true, crazy) | |
| fallacious(adjective, wrong, fake, false, counterfeit) | |
| invalid(adjective, wrong, fake, false, counterfeit) | |
| unreasonable(adjective, foolish, irrational, unwarranted) | |
| specious(adjective, wrong, fake, false, counterfeit) | |
| wrong(adjective, fake, false, counterfeit, foolish) | |
| irrational(adjective, foolish, unreasonable, defended) | |
| senseless(false, foolish, unreasonable, irrational) | |
| crazy(foolish, unreasonable) | |
| ridiculous(adjective, foolish, unreasonable, defended) | |
| sophistic(adjective, foolish, unreasonable, irrational) | |
| reasonless(adjective, wrong, false, foolish, crazy) | |
| aberrant(foolish, unreasonable) | |
| brainless(foolish, unreasonable) | |
| cockamamie(foolish, unreasonable) | |
| delirious(foolish, unreasonable) | |
| demented(foolish, unreasonable) | |
| disconnected(foolish, unreasonable) |
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| APA | Smart Define. (2015). unfounded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unfounded/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "unfounded thesaurus" https://smartdefine.org/unfounded/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, unfounded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unfounded/thesaurus/synonyms>. |
| MLA | Smart Define. "unfounded thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/unfounded/thesaurus/synonyms> |