93 entries under careless topic. ×

1
injudicious(weak, simple, silly, foolish)
1
insuppressible(thoughtless, impulsive, reckless, hasty)
1
jumping to conclusions(expression, idiom, thoughtless, impulsive)
1
overhasty(thoughtless, impulsive, reckless, hasty)
1
passionate(thoughtless, impulsive, reckless, hasty)
1
precipitant(adjective, thoughtless, impulsive, rash)
1
precipitate(adjective, wild, bold, thoughtless)
1
premature(thoughtless, impulsive, reckless, hasty)
1
temerarious(adjective, wild, bold, thoughtless)
1
uncareful(wild, immoral, thoughtless, negligent)
1
undependable(excited, immoral, thoughtless, unreliable)
1
unguarded(thoughtless, impulsive, reckless, hasty)
1
unreliable(excited, immoral, thoughtless, vague)
1
unstable(adjective, stupid, immoral, thoughtless)
1
unthinking(adjective, stupid, thoughtless, impulsive)
1
unwary(thoughtless, impulsive, reckless, hasty)
1
venturous(adjective, wild, bold, thoughtless)
0
bemused(adjective, inconstant, giddy)
0
changeful(adjective, inconstant, giddy)
0
flustered(adjective, inconstant, giddy)
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APASmart Define. (2015). harebrained thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/harebrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "harebrained thesaurus" https://smartdefine.org/harebrained/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, harebrained thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/harebrained/thesaurus/synonyms>.
MLASmart Define. "harebrained thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/harebrained/thesaurus/synonyms>