5
sloppy(adjective, casual, rash, happy-go-lucky, oblivious)
4
airy(adjective, feature, state, trait)
4
casual(adjective, feature, state, careless, trait)
4
crusty(adjective, excitable)
4
dashing
4
edgy(adjective, nervous, emotional, restless, fiery)
4
excessive(adjective, quick, expensive, steep, high-priced)
4
explosive(adjective, volatile, impetuous, excitable)
4
fiery(adjective, careless, quick, restless, impulsive)
4
groundless
4
haphazard(adjective, organization, plan, neglectful)
4
happy-go-lucky(adjective, feature, state, careless, trait)
4
hare-brained
4
harebrained(adjective, careless, wild, silly, foolish)
4
high-strung(adjective, nervous, emotional, restless, fiery)
4
hopeless(adjective, weak, careless, wild, anxious)
4
hot-tempered(adjective, nervous, emotional, restless, fiery)
4
ill-judged(adjective, careless, foolish, bold, thoughtless)
4
immoderate(adjective, free, careless, wild, extravagant)
4
lively(adjective, feature, state, trait, silly)
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APASmart Define. (2015). reckless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/reckless/thesaurus/synonyms
ChicagoSmart Define. 2015. "reckless thesaurus" https://smartdefine.org/reckless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, reckless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/reckless/thesaurus/synonyms>.
MLASmart Define. "reckless thesaurus" 3 August 2015. Web. 20 September 2026. <https://smartdefine.org/reckless/thesaurus/synonyms>