- Definitions|2
- Thesaurus|3.2k
- Abbreviations|0
7 entries under unsound topic. ×
| judicious(adjective, careless, foolish, thoughtful, wise) | |
| wise(adjective, reasonable, careless, foolish, prudent) | |
| cool as cucumber(expression, idiom, careless) | |
| coolheaded | |
| levelheaded | |
| thought-out | |
| with all marbles(expression, idiom, careless) |
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| APA | Smart Define. (2016). thoughtless thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/thoughtless/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, thoughtless thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/antonyms>. |
| MLA | Smart Define. "thoughtless thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/thoughtless/thesaurus/antonyms> |