2
breezy(adjective, feature, state, trait, casual)
2
buoyant(adjective, feature, state, trait, casual)
2
capricious(adjective, free, easy, careless, wild)
2
chance(adjective, careless, useless, erratic, frivolous)
2
cold(adjective, person, evil, indifferent, detached)
2
crazy(adjective, careless, silly, stupid, unthinking)
2
delinquent(adjective, slow, careless, indifferent, coarse)
2
dilatory
2
dissolute(adjective, easy, promiscuous)
2
dizzy(adjective, careless, wild, silly, stupid)
2
extravagant
2
fallible(adjective, able, prone)
2
free(wild, wanton)
2
frivolous(adjective, free, careless, wild, silly)
2
gaga(adjective, careless, silly, unsteady, inconstant)
2
gay(adjective, feature, state, trait, casual)
2
groundless
2
headstrong(adjective, careless, thoughtless, impulsive, stubborn)
2
hot-headed(rude, unkind, uncaring, impolite, inconsiderate)
2
hurried(adjective, violent, fast, quick, speedy)
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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>