14 entries under foolish topic. ×
| silly(adjective, absurd, giddy) | |
| senseless(adjective, silly, unsound, meaningless) | |
| unrealistic(adjective, practical, unsound, believable) | |
| unreasonable(adjective, correct, right, unsound) | |
| idiotic(adjective, reasonable, smart, unsound) | |
| unintelligent(adjective, unsound) | |
| unsound | |
| irrational(adjective, sound, rational, senseless) | |
| unwise(adjective, prudent, unsound) | |
| impractical(adjective, practical, unsound, unrealistic) | |
| indiscreet(adjective, unsound) | |
| ignorant(adjective, unsound) | |
| stupid(adjective, sharp, intelligent, unsound) | |
| imbecile(adjective, unsound) |
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| APA | Smart Define. (2016). sensible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sensible/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "sensible thesaurus" https://smartdefine.org/sensible/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, sensible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sensible/thesaurus/antonyms>. |
| MLA | Smart Define. "sensible thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/sensible/thesaurus/antonyms> |