- Definitions|2
- Thesaurus|3.2k
- Abbreviations|0
| logical(adjective, sound, reasonable, obscure, rational) | |
| rational(adjective, sound, careless, stupid, realistic) | |
| reasonable(adjective, sound, rational, senseless, unsound) | |
| clever | |
| intelligent(adjective, mind, foolishness, disability) | |
| sensible(adjective, sound, foolish, rational, unsound) | |
| realistic(adjective, sound, sensible, rational, unsound) | |
| sane(adjective, sound, stupid, rational, insane) | |
| sober(adjective, upset, calm, dull, light) | |
| sound(adjective, rational) | |
| lucid(adjective, unsound) | |
| normal(adjective, unusual, rational, irregular, sane) | |
| wise(adjective, sound, careless, foolish, rational) | |
| coherent(adjective, understandable) | |
| hands-on | |
| judicious(adjective, careless, foolish, thoughtful, wise) | |
| justified | |
| ruminative | |
| stable(adjective, sound, rational) | |
| thinking |
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| APA | Smart Define. (2015). irrational thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/irrational/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "irrational thesaurus" https://smartdefine.org/irrational/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, irrational thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/irrational/thesaurus/antonyms>. |
| MLA | Smart Define. "irrational thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/irrational/thesaurus/antonyms> |