102 entries under unthinking topic. ×

11
offhand(adjective, calm, cool, passionate, violent)
8
brash(adjective, sharp, rough, wild, foolish)
8
lackadaisical(adjective, calm, dull, cool, relaxed)
6
ill-considered(adjective, foolish, stupid, thoughtless, reckless)
6
uninterested(adjective, dull, indifferent, coarse, casual)
6
unreflective(adjective, stupid, casual, inattention)
5
clumsy(adjective, insensitive, disordered, untidy)
5
disinterested(adjective, calm, cool, relaxed, indifferent)
5
foolish(adjective, wrong, wild, silly, stupid)
5
superficial(adjective, casual, quick, impulsive, reckless)
4
flighty(adjective, foolish, stupid, unstable, unreasonable)
4
ill-advised(adjective, wild, foolish, stupid, quick)
4
impolitic(adjective, foolish, thoughtless, inappropriate, rash)
4
unaware(adjective, indifferent, silly, foolish, unconcerned)
4
undiscerning(adjective, indifferent, foolish, stupid, casual)
3
silly(adjective, foolish, stupid, vague, senseless)
3
stupid(adjective, dull, sharp, rough, wild)
3
undiplomatic(adjective, thoughtless, inappropriate, insensitive, unwise)
2
awkward(insensitive, disordered, untidy, messy)
2
blundering(thoughtless, insensitive, inconsiderate, indiscreet)
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APASmart Define. (2016). careless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/careless/thesaurus/synonyms
ChicagoSmart Define. 2016. "careless thesaurus" https://smartdefine.org/careless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, careless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/careless/thesaurus/synonyms>.
MLASmart Define. "careless thesaurus" 3 March 2016. Web. 26 September 2026. <https://smartdefine.org/careless/thesaurus/synonyms>