3
mindful(adjective, quiet, careless, aware, attentive)
3
ruminative
3
sentimental
3
vigilant(careless, indifferent)
3
watchful(adjective, inattentive)
2
alert
2
aware(adjective, unfriendly, unaware)
2
brainstorm
2
caring
2
circumspect
2
concerned(adjective, careful)
2
conscious(adjective, uncertain, doubtful, dubious)
2
courteous(adjective, mean, rude)
2
discreet(adjective, careless, stupid)
2
guarded
2
meticulous
2
polite(adjective, mean, rough, rude)
2
provident
2
solicitous
2
well-considered
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APASmart Define. (2016). heedless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heedless/thesaurus/antonyms
ChicagoSmart Define. 2016. "heedless thesaurus" https://smartdefine.org/heedless/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2016, heedless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heedless/thesaurus/antonyms>.
MLASmart Define. "heedless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/heedless/thesaurus/antonyms>