105 entries under silly topic. ×

3
psycho(noun, unusual, foolish, unwise)
3
senseless(adjective, foolish, fantastic, absurd)
3
stupid(adjective, foolish, absurd, irrational)
3
unhinged(adjective, unusual, strange, foolish)
2
balmy(adjective, wild, strange, foolish)
2
crackers(adjective, foolish, off, dotty)
2
daffy(adjective, foolish, crazy, mad)
2
freaked out(expression, foolish, unwise)
2
inane(adjective, foolish, fantastic, absurd)
2
inappropriate(foolish, fantastic, unwise, impractical)
2
irresponsible(foolish, fantastic, unwise, impractical)
2
maniacal(adjective, foolish, unwise)
2
mental(adjective, unusual, foolish, unwise)
2
round the bend(expression, idiom, foolish, unwise)
2
schizo(adjective, strange, foolish, crazy)
2
zany(adjective, wild, foolish, crazy)
1
bedlamite(noun, adjective, character, keen, warm)
1
beyond all reason(expression, idiom, foolish, fantastic)
1
buggy(adjective, foolish, crazy, mad)
1
cracked(adjective, wild, foolish, crazy)
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APASmart Define. (2016). eccentric thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/eccentric/thesaurus/synonyms
ChicagoSmart Define. 2016. "eccentric thesaurus" https://smartdefine.org/eccentric/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, eccentric thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/eccentric/thesaurus/synonyms>.
MLASmart Define. "eccentric thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/eccentric/thesaurus/synonyms>