118 entries under careless topic. ×

60
silly(adjective, weak, simple, wrong, knowledge)
44
stupid(adjective, dull, weak, simple, wrong)
28
senseless(adjective, dull, weak, simple, wrong)
27
inane(adjective, dull, simple, slight)
27
irrational(adjective, weak, simple, wild)
24
wild(adjective, wrong, offensive, rude)
20
unwise(adjective, weak, simple, wrong)
18
imprudent(adjective, weak, simple, wild)
18
unreasonable(adjective, weak, simple, wrong)
17
frivolous(adjective, slight, silly, stupid)
17
dull(adjective, simple, rough, silly)
17
ill-advised(adjective, dull, weak, simple)
16
mindless(adjective, dull, simple, wrong, ability)
15
foolhardy(adjective, wild, strange, silly)
14
loony(adjective, weak, simple, wrong, knowledge)
14
witless(adjective, dull, weak, simple, ability)
13
injudicious(adjective, weak, simple, wrong)
12
ill-considered(adjective, weak, simple, silly)
12
rash(adjective, dull, silly, stupid)
12
thoughtless(adjective, silly, stupid, crazy)
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APASmart Define. (2016). foolish thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/foolish/thesaurus/synonyms
ChicagoSmart Define. 2016. "foolish thesaurus" https://smartdefine.org/foolish/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, foolish thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/foolish/thesaurus/synonyms>.
MLASmart Define. "foolish thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/foolish/thesaurus/synonyms>