528 entries under adjective topic. ×

3
unregardful(cold, forget, uncaring, inattentive)
3
unthrifty
3
unwitting(careless, unconcerned, sloppy, ignorant)
3
unworried(feature, state, indifferent, trait)
3
venturesome(careless, wild, thoughtless, impulsive)
3
wandering
3
wool-gathering
3
woolgathering(careless, remote, vague, sloppy)
2
aimless
2
airheaded(careless, remote, vague, sloppy)
2
away
2
bemused(careless, remote, vague, sloppy)
2
bored(dull, careless, indifferent, apathetic)
2
breakneck(violent, wild, fast, quick)
2
breezy(feature, state, trait, casual)
2
buoyant(feature, state, trait, casual)
2
capricious(free, easy, careless, wild)
2
chance(careless, useless, erratic, frivolous)
2
cold(person, evil, indifferent, detached)
2
crazy(careless, silly, stupid, unthinking)
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APASmart Define. (2016). heedless thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/heedless/thesaurus/synonyms
ChicagoSmart Define. 2016. "heedless thesaurus" https://smartdefine.org/heedless/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, heedless thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/heedless/thesaurus/synonyms>.
MLASmart Define. "heedless thesaurus" 24 March 2016. Web. 25 September 2026. <https://smartdefine.org/heedless/thesaurus/synonyms>