- Definitions|2
- Thesaurus|3.3k
- Abbreviations|0
71 entries under adjective topic. ×
| thoughtless(inconsiderate, unobservant) | |
| goofy | |
| heedless(happy, careless, careful, superficial) | |
| inconsiderate(person, kind, happy, careless) | |
| inattentive(happy, careless, superficial, flippant) | |
| rude(happy, careless, superficial, flippant) | |
| unthinking | |
| uncaring(happy, careless, superficial, flippant) | |
| careless(happy, attentive, superficial, responsible) | |
| cruel(good, kind, gentle, pain) | |
| frivolous(silly, trivial) | |
| impetuous(calm, thinking) | |
| mindless(stupid, automatic) | |
| negligent(happy, careless, superficial, flippant) | |
| remiss(happy, careless, careful, thoughtless) | |
| superficial(happy, sensible, careless, deep) | |
| tactless(careless, unthinking, tactful) | |
| uncivil(happy, careless, superficial, flippant) | |
| unthoughtful(happy, careless, safe, tactful) | |
| foolish(sound, wise, nonsensical, idiotic) |
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| APA | Smart Define. (2016). thoughtful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/thoughtful/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "thoughtful thesaurus" https://smartdefine.org/thoughtful/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, thoughtful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/thoughtful/thesaurus/antonyms>. |
| MLA | Smart Define. "thoughtful thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/thoughtful/thesaurus/antonyms> |