169 entries under thoughtless topic. ×

3
inexpedient(adjective, foolish, inappropriate, rash)
3
stupid(adjective, dull, sharp, rough, wild)
3
temerarious(adjective, wild, foolish, rash)
3
undependable(adjective, foolish, unpredictable, unreliable)
3
undiplomatic(adjective, inappropriate, insensitive, unwise)
3
venturesome(adjective, wild, lively, anxious, cheerful)
2
blundering(insensitive, unthinking, inconsiderate, indiscreet)
2
boorish(unkind, insensitive, unthinking, selfish)
2
harebrained(adjective, wrong, wild, foolish, stupid)
2
immature(impulsive, reckless, negligent, hasty)
2
insensitive(adjective, dull, hard, sharp, rough)
2
napping(adjective, casual, inconsiderate, happy-go-lucky)
2
precipitant(impulsive, reckless, hasty)
2
scatterbrained(adjective, indifferent, foolish, apathetic)
2
uncareful(adjective, weak, wild, foolish, feeble)
2
unceremonious(adjective, indifferent, casual, unkind)
2
unintended
2
unpremeditated(passionate, violent, casual, abrupt)
2
unprepared(incompetent, heedless, wasteful, unproductive)
2
unreasoning(adjective, dull, indifferent, foolish, stupid)
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APASmart Define. (2016). careless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/careless/thesaurus/synonyms
ChicagoSmart Define. 2016. "careless thesaurus" https://smartdefine.org/careless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, careless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/careless/thesaurus/synonyms>.
MLASmart Define. "careless thesaurus" 3 March 2016. Web. 25 September 2026. <https://smartdefine.org/careless/thesaurus/synonyms>