150 entries under silly topic. ×

4
cracked(adjective, wrong, wild, foolish)
4
dotty(adjective, weak, simple, foolish)
4
foolhardy(adjective, simple, careless, wild)
4
indiscreet(adjective, weak, simple, careless)
4
irresponsible(adjective, wrong, wild, foolish)
4
mental(adjective, foolish, stupid, disturbed)
4
moonstruck(adjective, foolish, stupid, insane)
4
outlandish(adjective, unusual, strange, foolish)
4
raging(adjective, wrong, violent, wild)
4
strange(unusual, foolish, ridiculous, unwise)
4
touched(adjective, wrong, unusual, wild, strange)
3
cockamamie(adjective, weak, simple, foolish)
3
eccentric(adjective, keen, warm, unusual, wild)
3
impractical(adjective, wrong, wild, foolish)
3
nuts(adjective, wrong, rough, wild)
3
pointless(adjective, simple, foolish, stupid)
3
potty(adjective, wild, foolish, crazy)
3
puerile(adjective, careless, foolish, stupid)
3
unpredictable(adjective, weak, uncertain, crazy)
2
bonkers(adjective, foolish, crazy, mad)
11 years ago|26k views|share |citing 
APASmart Define. (2015). irrational thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/irrational/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrational thesaurus" https://smartdefine.org/irrational/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, irrational thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/irrational/thesaurus/synonyms>.
MLASmart Define. "irrational thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/irrational/thesaurus/synonyms>