54 entries under adjective topic. ×

14
careful(false, loose, reckless)
9
cautious(careless, reckless)
7
mindful(quiet, careless, careful)
6
attentive(careless, careful)
6
heedful
6
meticulous(false, careless)
5
diligent
5
assiduous
5
prudent
4
painstaking
3
conscientious
3
scrupulous(loose, careful, sloppy)
3
thoughtful(happy, careless, superficial, contemplative)
3
vigilant(careless, indifferent, careful, watchful)
3
wary(careless, certain)
2
chary
2
circumspect
2
industrious
2
observant(careless, unobservant)
2
successful
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APASmart Define. (2015). negligent thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/negligent/thesaurus/antonyms
ChicagoSmart Define. 2015. "negligent thesaurus" https://smartdefine.org/negligent/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, negligent thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/negligent/thesaurus/antonyms>.
MLASmart Define. "negligent thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/negligent/thesaurus/antonyms>