189 entries under silly topic. ×

6
nuts(adjective, simple, foolish, unsound)
6
outlandish(adjective, foolish, absurd, unwise)
6
puerile(adjective, dull, foolish, stupid)
6
wacky(adjective, wild, foolish, stupid)
6
witless(adjective, dull, simple, slow, careless)
5
cuckoo(adjective, foolish, unwise)
5
dopey(adjective, dull, simple, foolish)
5
dull(adjective, weak, simple, careless)
5
hollow(adjective, slight, value, small)
5
sappy(adjective, soft, informal, stupid)
5
shallow(adjective, slight, small, stupid)
5
trifling(adjective, slight, poor, thin, false)
5
weak(adjective, dull, thin, false)
5
zany(adjective, foolish, unwise)
4
batty(adjective, wild, foolish, stupid)
4
childish(adjective, foolish, stupid, absurd)
4
dippy(adjective, strange, foolish, stupid)
4
doltish(adjective, dull, careless, foolish)
4
harebrained(adjective, careless, foolish, stupid)
4
imprudent(adjective, careless, foolish, stupid)
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APASmart Define. (2015). inane thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inane/thesaurus/synonyms
ChicagoSmart Define. 2015. "inane thesaurus" https://smartdefine.org/inane/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, inane thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inane/thesaurus/synonyms>.
MLASmart Define. "inane thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/inane/thesaurus/synonyms>