silliest
Acting most foolish
Silliest is the superlative form of silly—the most foolish, absurd, or lacking in seriousness among a group: That's the silliest excuse I've ever heard.
Often used affectionately rather than critically: She makes the silliest faces to get the baby to laugh.
Without coherent meaning
- preposterousCompletely contrary to reason
- ludicrousAbsurdly unreasonable or inappropriate
- ridiculousInviting scorn through absurdity
- outlandishStrikingly weird or foreign-seeming
bizarre · far-fetched · incongruous · cockamamie · harebrained · surreal · grotesque · fantastical
Lacking sense or meaning
- asinineExtremely foolish or stupid
- senselessLacking reason or awareness
- brainlessDevoid of intelligence
- idioticExtremely lacking intelligence
moronic · imbecilic · daft · doltish · fatuous · witless · dimwitted · birdbrained
Inclined to merriment
- mischievousPlayfully causing trouble
- impishPlayfully mischievous in manner
- prankishFond of tricks
- anticLudicrous or playful act
clowning · goofing · joking · teasing · horsing around · tomfoolery · shenanigans · hijinks
Not fully developed
- juvenileYoung person or animal
- infantileCharacteristic of infants
- puerileChildishly foolish
- babyishImmature in behavior
kiddish · naive · innocent · unsophisticated · callow · giggly · goofy · dorky
Imaginatively unrealistic
- quirkyIdiosyncratically unusual
- eccentricUnconventional in character
- offbeatPleasantly strange or unusual
- kookyOddball in manner
oddball · capricious · unpredictable · imaginative · pixilated · flaky · nutty · screwy
nonsensical
Without coherent meaning
- preposterousCompletely contrary to reason
- ludicrousAbsurdly unreasonable or inappropriate
- ridiculousInviting scorn through absurdity
outlandish · bizarre · far-fetched · incongruous · cockamamie · harebrained · surreal · grotesque · fantastical · anomalous
inane
Lacking sense or meaning
- asinineExtremely foolish or stupid
- senselessLacking reason or awareness
- brainlessDevoid of intelligence
idiotic · moronic · imbecilic · daft · doltish · fatuous · witless · dimwitted · birdbrained · blockheaded
frolicsome
Inclined to merriment
- mischievousPlayfully causing trouble
- impishPlayfully mischievous in manner
- prankishFond of tricks
antic · clowning · goofing · joking · teasing · horsing around · tomfoolery · shenanigans · hijinks · buffoonery
immature
Not fully developed
babyish · kiddish · naive · innocent · unsophisticated · callow · giggly · goofy · dorky · ditzy
fanciful
Imaginatively unrealistic
- quirkyIdiosyncratically unusual
- eccentricUnconventional in character
- offbeatPleasantly strange or unusual
kooky · oddball · capricious · unpredictable · imaginative · pixilated · flaky · nutty · screwy · batty
comical
Causing laughter
- laughableWorthy of derision
- hilariousExtremely amusing
- uproariousExtremely and loudly comedic
riotous · farcical · slapstick · campy · corny · cheesy · hokey · hammy · tongue-in-cheek · waggish