117 entries under foolish topic. ×

14
foolhardy(adjective, careless, wild, impulsive)
14
unwise(adjective, careless, silly, stupid)
13
stupid(adjective, dull, sharp, rough, harsh)
13
ill-considered(adjective, careless, impulsive, rash)
13
silly(adjective, feature, state, wrong, condition)
12
forgetful(adjective, careless, cold, silly)
12
irrational(adjective, wrong, careless, wild, silly)
12
regardless(adjective, adverb, slow, careless, cold)
12
senseless(adjective, wrong, careless, silly)
12
witless(adjective, careless, indifferent, silly)
11
ill-advised(adjective, rude, careless, wild, silly)
10
brainless(adjective, silly, stupid, unwise)
10
improvident(adjective, careless, casual, bold)
10
impulsive(adjective, rude, careless, silly)
10
inept(adjective, sharp, rough, careless)
9
hotheaded(adjective, rude, careless, wild, silly)
9
unconsidered(adjective, rash, impetuous, irresponsible)
9
unreasonable(adjective, careless, silly, stupid)
8
absent-minded(adjective, careless, cold, stupid)
8
impolitic(adjective, sharp, rough, rude, careless)
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APASmart Define. (2016). thoughtless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/thoughtless/thesaurus/synonyms
ChicagoSmart Define. 2016. "thoughtless thesaurus" https://smartdefine.org/thoughtless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, thoughtless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/thoughtless/thesaurus/synonyms>.
MLASmart Define. "thoughtless thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/thoughtless/thesaurus/synonyms>