80 entries under silly topic. ×

2
batty(adjective, foolish, unwise)
2
cuckoo(adjective, foolish, unwise)
2
freaked out(expression, foolish, unwise)
2
loony(adjective, foolish, unwise)
2
unworkable(foolish, unwise)
2
wacky(adjective, unusual, strange, foolish)
1
cockeyed(unusual, wild, strange, foolish)
1
fatuous(adjective, foolish, unwise)
1
harebrained(extraordinary, foolish, amazing, absurd)
1
screwball(adjective, slang, foolish, usual)
1
zany(adjective, foolish, ridiculous, absurd)
0
ape(foolish, unwise)
0
bats in the belfry(expression, idiom, foolish, unwise)
0
berserk(foolish, unwise)
0
beyond all reason(expression, idiom, foolish, unwise)
0
bonkers(foolish, unwise)
0
cracked(foolish, unwise)
0
crazed(foolish, unwise)
0
delirious(foolish, unwise)
0
demented(unusual, strange, foolish, unwise)
10 years ago|20k views|share |citing 
APASmart Define. (2016). outlandish thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/outlandish/thesaurus/synonyms
ChicagoSmart Define. 2016. "outlandish thesaurus" https://smartdefine.org/outlandish/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, outlandish thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/outlandish/thesaurus/synonyms>.
MLASmart Define. "outlandish thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/outlandish/thesaurus/synonyms>