77 entries under silly topic. ×

1
unhinged(unusual, strange, foolish, crazy)
1
unrealistic(adjective, foolish, fantastic, unwise)
1
unworkable(foolish, fantastic, unwise, impractical)
1
zany(foolish, unwise)
0
ape(foolish, unwise)
0
bats in the belfry(expression, idiom, foolish, unwise)
0
berserk(foolish, unwise)
0
bonkers(foolish, crazy, unwise, cuckoo)
0
cracked(foolish, unwise)
0
crazed(foolish, unwise)
0
cuckoo(foolish, crazy, unwise, queer)
0
delirious(foolish, unwise)
0
demented(unusual, strange, foolish, odd)
0
dingy(foolish, unwise)
0
dippy(foolish, unwise)
0
flipped(foolish, unwise)
0
flipped out(expression, foolish, unwise)
0
fruity(foolish, unwise)
0
lunatic(foolish, unwise)
0
mad as a March hare(expression, idiom, foolish, unwise)
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APASmart Define. (2016). peculiar thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/peculiar/thesaurus/synonyms
ChicagoSmart Define. 2016. "peculiar thesaurus" https://smartdefine.org/peculiar/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, peculiar thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/peculiar/thesaurus/synonyms>.
MLASmart Define. "peculiar thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/peculiar/thesaurus/synonyms>