255 entries under careless topic. ×

9
brash(adjective, sharp, rude, indifferent)
9
ill-considered(adjective, foolish, thoughtless, impulsive)
9
inobservant(adjective, cold, forget, uncaring)
9
preoccupied(adjective, indifferent, apathetic, unconcerned)
8
bold(adjective, rude, wild, thoughtless)
8
casual(adjective, feature, state, trait)
8
disregardful(adjective, sharp, rude, indifferent)
8
foolish(adjective, wild, silly, stupid)
8
impulsive(adjective, rude, violent, wild)
8
unconscious(adjective, indifferent, apathetic, thoughtless)
8
unguarded(adjective, casual, bold, thoughtless)
7
adventurous(adjective, wild, thoughtless, impulsive)
7
cursory(adjective, indifferent, casual, quick)
7
feckless(adjective, feature, state, indifferent)
7
happy-go-lucky(adjective, feature, state, trait)
7
hotheaded(adjective, rude, wild, silly)
7
ill-advised(adjective, rude, violent, wild)
7
injudicious(adjective, indifferent, foolish, casual)
7
listless(adjective, energy, sharp, rude)
7
unwise(adjective, foolish, thoughtless, rash)
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APASmart Define. (2016). heedless thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/heedless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heedless thesaurus" https://smartdefine.org/heedless/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, heedless thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/heedless/thesaurus/synonyms>.
MLASmart Define. "heedless thesaurus" 24 March 2016. Web. 26 September 2026. <https://smartdefine.org/heedless/thesaurus/synonyms>