528 entries under adjective topic. ×

4
unenlightened(unconcerned, ignorant, unconscious, negligent)
4
uninvolved(indifferent, detached, distant, apathetic)
4
unreasoning(dull, careless, indifferent, thoughtless)
4
unsuspecting(thoughtless, unconcerned, ignorant, unconscious)
4
untroubled(feature, state, indifferent, trait)
3
automatic(unthinking, superficial, dutiful, sketchy)
3
befuddled
3
cool(feature, state, indifferent, trait)
3
day-dreaming
3
daydreaming(careless, silly, foolish, remote)
3
derelict(careless, indifferent, coarse, unconcerned)
3
easy(feature, state, indifferent, trait)
3
easy-going(feature, state, trait)
3
frantic(violent, fast, quick, reckless)
3
giddy(careless, wild, silly, stupid)
3
hare-brained
3
harum-scarum(feature, state, violent, careless)
3
hectic
3
ignoring
3
ill-judged(careless, foolish, bold, thoughtless)
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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>