74 entries under impetuous topic. ×

11
ill-advised(adjective, rude, careless, wild, silly)
10
improvident(adjective, careless, foolish, casual, bold)
10
impulsive(adjective, rude, careless, silly, foolish)
9
hotheaded(adjective, rude, careless, wild, silly)
9
unconsidered(adjective, foolish, rash, irresponsible)
6
ill-judged(adjective, careless, foolish, bold, impulsive)
6
unwatchful(adjective, careless, cold, forget, bold)
5
daredevil(adjective, wild, rash, reckless)
4
breakneck(adjective, wild, quick, rash, reckless)
4
daring(adjective, careless, wild, impulsive, rash)
4
offhand(adjective, careless, indifferent, casual, sloppy)
3
abrupt(adjective, quick, rash, reckless)
3
rough(adjective, sharp, harsh, rude, careless)
2
dangerous(adjective, rash, reckless)
2
flaky
2
instinctive(adjective, careless, inconsiderate, unwary)
2
sudden(quick, impulsive, rash, reckless)
2
unpremeditated(careless, inconsiderate, hasty, unwary)
1
any old way(expression, adjective, idiom, slow, careless)
1
caught napping(expression, adjective, idiom, careless, bold)
10 years ago|30k views|share |citing 
APASmart Define. (2016). thoughtless thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/thoughtless/thesaurus/synonyms
ChicagoSmart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, thoughtless thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/synonyms>.
MLASmart Define. "thoughtless thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/thoughtless/thesaurus/synonyms>