528 entries under adjective topic. ×

17
forgetful(careless, cold, indifferent, silly)
16
hasty(sharp, rude, violent, careless)
16
remiss(noun, neglect, careless, cold)
16
unaware(indifferent, silly, foolish, thoughtless)
16
unobservant(noun, careless, cold, indifferent)
15
indiscreet(sharp, rude, violent, careless)
15
mindless(careless, indifferent, wild, stupid)
15
unheedful(careless, cold, forget, uncaring)
15
unwary(careless, cold, forget, uncaring)
15
wild(mean, free, violent, careless)
14
irresponsible(feature, state, careless, wild)
13
devil-may-care(feature, state, free, careless)
13
impetuous(violent, careless, fast, quick)
13
perfunctory(neglect, cold, forget, uncaring)
12
blind(sharp, rude, careless, indifferent)
12
distracted(noun, careless, indifferent, apathetic)
12
incurious(careless, cold, indifferent, forget)
11
absent(careless, indifferent, stupid, apathetic)
11
distrait(noun, careless, cold, forget)
11
improvident(careless, foolish, cheerful, casual)
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APASmart Define. (2016). heedless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heedless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heedless thesaurus" https://smartdefine.org/heedless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, heedless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heedless/thesaurus/synonyms>.
MLASmart Define. "heedless thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/heedless/thesaurus/synonyms>