104 entries under silly topic. ×

5
nutty(adjective, foolish, stupid, mad)
5
out to lunch(expression, adjective, idiom, wild)
5
potty(adjective, wild, foolish, mad)
5
screwy(adjective, foolish, stupid, mad)
4
barmy(adjective, foolish, mad, insane)
4
crazed(adjective, foolish, stupid, mad)
4
fruity(adjective, foolish, mad, insane)
4
irrational(adjective, foolish, stupid, crazy)
4
wacky(adjective, foolish, mad, insane)
3
balmy(adjective, foolish, unwise)
3
eccentric(adjective, foolish, unwise, off)
3
kooky(adjective, foolish, mad, insane)
3
odd(foolish, unwise)
3
schizo(adjective, wild, foolish, mad)
2
bats in the belfry(expression, adjective, idiom, wild)
2
berserk(adjective, foolish, mad, insane)
2
delirious(adjective, foolish, mad, insane)
2
flipped out(expression, adjective, foolish, mad)
2
freaked out(expression, adjective, foolish, mad)
2
mad as a March hare(expression, adjective, idiom, wild)
11 years ago|2.6k views|share |citing 
APASmart Define. (2015). of unsound mind thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/of_unsound_mind/thesaurus/synonyms
ChicagoSmart Define. 2015. "of unsound mind thesaurus" https://smartdefine.org/of_unsound_mind/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, of unsound mind thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms>.
MLASmart Define. "of unsound mind thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/of_unsound_mind/thesaurus/synonyms>