- Definitions|2
- Thesaurus|3.2k
- Abbreviations|0
514 entries under adjective topic. ×
| boorish(sharp, rough, careless, vulgar) | |
| cursory(careless, indifferent, casual, quick) | |
| daredevil(wild, rash, reckless, impetuous) | |
| distracted(careless, indifferent, apathetic, inattentive) | |
| frivolous(silly, crazy, vague, unreliable) | |
| giddy(careless, silly, immoral, vague) | |
| hard-hearted(mean, nasty, ill, hostile) | |
| harum-scarum(feature, state, condition, trait) | |
| headlong(rude, careless, wild, quick) | |
| heartless(mean, ill, hostile, unfriendly) | |
| illogical(vague, irrational, arbitrary, perverse) | |
| inadvisable(foolish, rash, risky, ill-advised) | |
| inexpedient(careless, foolish, rash, unwise) | |
| loony(careless, silly, stupid, unwise) | |
| misguided(foolish, rash, unwise, risky) | |
| nonchalant(feature, state, careless, indifferent) | |
| obtuse(careless, silly, foolish, stupid) | |
| sharp(rough, careless, bitter, unkind) | |
| thankless(inconsiderate, unappreciative, ungrateful) | |
| unceremonious(severe, unkind, uncaring, selfish) |
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| APA | Smart Define. (2016). thoughtless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thoughtless/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, thoughtless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/synonyms>. |
| MLA | Smart Define. "thoughtless thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/thoughtless/thesaurus/synonyms> |