510 entries under adjective topic. ×

3
sensitive(nervous, emotional, restless, volatile)
3
short-sighted(silly, foolish, thoughtless, rash)
3
spendthrift(free, careless, wild, extravagant)
3
spirited(feature, state, trait)
3
spontaneous(noun, careless, casual, thoughtless)
3
swift(violent, fast, quick, thoughtless)
3
tactless(rude, thoughtless, impulsive, unkind)
3
touchy(nervous, emotional, restless, fiery)
3
unaccountable(madcap, feckless, irresponsive)
3
unadvised(smart, careless)
3
uncareful(weak, careless, wild, thought)
3
undiplomatic(rude, impulsive, unkind, aggressive)
3
unplanned(noun, impulsive, rash, unthinking)
3
unthoughtful
3
vehement(crazy, mad, odd, insane)
3
weak(feature, state, careless, trait)
2
abrupt(violent, fast, quick, thoughtless)
2
brazen
2
brisk(cheerful, jolly, quick, cheery)
2
brittle
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APASmart Define. (2015). reckless thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/reckless/thesaurus/synonyms
ChicagoSmart Define. 2015. "reckless thesaurus" https://smartdefine.org/reckless/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, reckless thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/reckless/thesaurus/synonyms>.
MLASmart Define. "reckless thesaurus" 3 August 2015. Web. 23 September 2026. <https://smartdefine.org/reckless/thesaurus/synonyms>