4
nervous(adjective, emotional, restless, impulsive, volatile)
4
oblivious(casual, rash, happy-go-lucky, slapdash, neglectful)
4
passionate(adjective, careless, thoughtless, restless, impulsive)
4
risky(adjective, foolish, anxious, bold, worried)
4
self-destructive
4
slovenly(adjective, neglect, neglectful)
4
sudden(noun, careless, casual, quick, thoughtless)
4
tempestuous(adjective, violent, rash, impetuous, uncontrolled)
4
unheeding(indifferent, casual, unconcerned, unkind, inconsiderate)
4
unreasonable(adjective, careless, silly, stupid, thoughtless)
4
unreflective(adjective, casual, obtuse, happy-go-lucky, slapdash)
4
unsound(foolish, rash, risky)
4
volcanic(adjective, nervous, emotional, restless, fiery)
4
wasteful(adjective, free, careless, indifferent, wild)
4
witless(adjective, crazy, mad, odd, insane)
3
ardent(adjective, impulsive, rash, unthinking, excitable)
3
brassy(adjective, mad, bold, naughty, impudent)
3
bumbling(adjective, neglectful)
3
cheeky(adjective, mad, bold, naughty, impudent)
3
combustible(adjective, excitable)
11 years ago|25k views|share |citing 
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>