91 entries under adjective topic. ×

22
careless(false, loose, reckless)
9
incautious(false, loose, careful, reckless)
9
inattentive(false, loose, reckless)
9
naive
7
reckless(false, loose, thought, reserved)
5
thoughtless(reasonable, false, loose, prudent)
4
unscrupulous(false, loose, reckless)
3
neglectful(careless, failing)
3
casual
3
foolish(sound, false, loose, wise)
3
heedless(false, careless, loose, reckless)
3
negligent(false, careless, indifferent, loose)
3
remiss(careless, thoughtless)
3
slipshod(careless, refined)
3
unconcerned(false, loose, reckless)
3
perfunctory(unthinking, automatic)
2
brash(impulsive, brazen)
2
foolhardy(rash, impetuous)
2
forgetful
2
haphazard(organization, plan)
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APASmart Define. (2016). careful thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/careful/thesaurus/antonyms
ChicagoSmart Define. 2016. "careful thesaurus" https://smartdefine.org/careful/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, careful thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/careful/thesaurus/antonyms>.
MLASmart Define. "careful thesaurus" 24 January 2016. Web. 28 September 2026. <https://smartdefine.org/careful/thesaurus/antonyms>