8 entries under careful topic. ×

8
heedless(adjective, happy, careless, superficial)
4
remiss(adjective, happy, careless, thoughtless)
2
incautious(adjective, happy, careless, superficial)
0
brutish(calm, apathetic, compassionate, chaste)
0
out on limb(expression, idiom, shy)
0
pay no mind(expression, idiom)
0
unconsiderate
0
wide open(expression, shy)
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APASmart Define. (2016). thoughtful thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/thoughtful/thesaurus/antonyms
ChicagoSmart Define. 2016. "thoughtful thesaurus" https://smartdefine.org/thoughtful/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2016, thoughtful thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/thoughtful/thesaurus/antonyms>.
MLASmart Define. "thoughtful thesaurus" 29 March 2016. Web. 30 September 2026. <https://smartdefine.org/thoughtful/thesaurus/antonyms>