13 entries under unsound topic. ×
| senseless(adjective, silly, foolish, meaningless) | |
| foolish(adjective, sound, wise, nonsensical) | |
| unrealistic(adjective, foolish, practical, believable) | |
| unreasonable(adjective, correct, right, foolish) | |
| idiotic(adjective, reasonable, smart, foolish) | |
| unintelligent(adjective, foolish) | |
| irrational(adjective, sound, foolish, rational, senseless) | |
| unwise(adjective, foolish, prudent) | |
| impractical(adjective, foolish, practical, unrealistic) | |
| indiscreet(adjective, foolish) | |
| ignorant(adjective, foolish) | |
| stupid(adjective, sharp, foolish, intelligent) | |
| imbecile(adjective, foolish) |
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| APA | Smart Define. (2016). sensible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/sensible/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "sensible thesaurus" https://smartdefine.org/sensible/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, sensible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/sensible/thesaurus/antonyms>. |
| MLA | Smart Define. "sensible thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/sensible/thesaurus/antonyms> |