- Definitions|2
- Thesaurus|3.2k
- Abbreviations|0
| prudent(adjective, reasonable, careless, imprudent) | |
| kind(noun, adjective, mean, hard, reasonable) | |
| thoughtful(adjective, contemplative, introspective) | |
| considerate(adjective, mean, hard, reasonable, prudent) | |
| heedful | |
| attentive(adjective, reasonable, prudent) | |
| charitable | |
| smart | |
| alert | |
| ruminative | |
| brainstorm | |
| careful(adjective, reasonable, false, loose, prudent) | |
| cautious(adjective, reasonable, careless, careful, prudent) | |
| contemplative | |
| jealous | |
| circumspect | |
| civil | |
| good | |
| kind-hearted | |
| kindhearted |
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| APA | Smart Define. (2016). thoughtless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thoughtless/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, thoughtless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/antonyms>. |
| MLA | Smart Define. "thoughtless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/thoughtless/thesaurus/antonyms> |