9
screwy(adjective, light, wild, foolish, stupid)
9
soft(adjective, tender, sweet, stupid, emotional)
8
half-assed
8
cockamamie(adjective, weak, simple, foolish, crazy)
8
airheaded(adjective, stupid, unreliable, changeable, erratic)
8
cockamamy(adjective, foolish, thoughtless, unwise, unintelligent)
8
comical(adjective, ridiculous, amusing)
8
dopey(adjective, simple, knowledge, slang, ability)
8
funny(adjective, light, crazy, absurd, amusing)
8
reckless(adjective, careless, foolish, stupid, crazy)
7
risible
7
dotty(adjective, weak, simple, foolish, stupid)
7
inept(adjective, careless, foolish, stupid, rash)
7
insensate(adjective, dull, simple, ability, stupid)
7
outlandish(adjective, foolish, ridiculous, absurd, unwise)
7
rash(adjective, careless, foolish, stupid, crazy)
7
slaphappy(adjective, dazed)
7
superficial(adjective, slight, detail, foolish, stupid)
6
cuckoo(adjective, foolish, stupid, crazy, mad)
6
daffy(adjective, simple, foolish, stupid, crazy)
10 years ago|39k views|share |citing 
APASmart Define. (2016). silly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/silly/thesaurus/synonyms
ChicagoSmart Define. 2016. "silly thesaurus" https://smartdefine.org/silly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, silly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/silly/thesaurus/synonyms>.
MLASmart Define. "silly thesaurus" 20 January 2016. Web. 21 September 2026. <https://smartdefine.org/silly/thesaurus/synonyms>