189 entries under silly topic. ×

4
innocuous(adjective, dull, weak, stupid)
4
trivial(adjective, dull, simple, slight, poor)
4
worthless(adjective, slight, value, small)
3
bonkers(adjective, simple, foolish, unsound)
3
daffy(adjective, simple, foolish, stupid)
3
dense(adjective, dull, simple, slow)
3
eccentric(adjective, foolish, fantastic, absurd)
3
foolhardy(adjective, foolish, stupid, crazy)
3
half-witted(adjective, dull, simple, slow)
3
incongruous(adjective, stupid, insignificant, unreasonable)
3
inconsistent(adjective, simple, foolish, stupid)
3
irresponsible(adjective, careless, foolish, stupid)
3
kooky(adjective, foolish, unwise)
3
lunatic(adjective, simple, foolish, crazy)
3
obtuse(adjective, dull, simple, slow, careless)
3
purposeless(adjective, value, stupid, insignificant)
2
barmy(adjective, careless, foolish, stupid)
2
cockeyed(foolish, fantastic, unwise, impractical)
2
credulous(adjective, stupid, green, fat)
2
flaky(adjective, wild, 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>