Adjective silly has 4 senses
- cockamamie, cockamamy, goofy, sappy, silly, wacky, whacky, zany, unreasonable - pungent adjectives of disesteem; "gave me a cockamamie reason for not going"; "wore a goofy hat"; "a silly idea"; "some wacky plan for selling more books"
Antonym: wise (indirect, via foolish)
- airheaded, dizzy, empty-headed, featherbrained, giddy, light-headed, lightheaded, silly - lacking seriousness; given to frivolity; "a dizzy blonde"; "light-headed teenagers"; "silly giggles"
Antonym: serious (indirect, via frivolous)
- pathetic, ridiculous, silly - inspiring scornful pity; "how silly an ardent and unsuccessful wooer can be especially if he is getting on in years"- Dashiell Hammett
Antonym: dignified (indirect, via undignified)
- punch-drunk, silly, slaphappy - dazed from or as if from repeated blows; "knocked silly by the impact"; "slaphappy with exhaustion"
Antonyms: clearheaded, clear-thinking (indirect, via confused)
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Noun silly has 1 sense
- silly - a word used for misbehaving children; "don't be a silly"
--1 is a kind of child, kid, youngster, minor, shaver, nipper, small fry, tiddler, tike, tyke, fry, nestling
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