68 entries under adjective topic. ×

15
prudent(reasonable, careless, imprudent)
13
kind(noun, mean, hard, reasonable)
13
thoughtful(contemplative, introspective)
8
considerate(mean, hard, reasonable, prudent)
8
heedful
7
attentive(reasonable, prudent)
6
alert
5
careful(reasonable, false, loose, prudent)
4
cautious(reasonable, careless, careful, prudent)
3
jealous
3
circumspect
3
kind-hearted
3
kindhearted
3
mannerly
3
mindful(quiet, reasonable, careless, prudent)
3
observant(reasonable, careless, alert, prudent)
3
polite(mean, rough, rude, refined)
2
chary
2
discreet(sensible, careless, stupid, cautious)
2
canny(open, honest, careless)
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APASmart Define. (2016). thoughtless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/thoughtless/thesaurus/antonyms
ChicagoSmart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, thoughtless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/antonyms>.
MLASmart Define. "thoughtless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/thoughtless/thesaurus/antonyms>