The meaning of SILLY is exhibiting or indicative of a lack of common sense or sound judgment. How to use silly in a sentence. Synonym Discussion of Silly.

/ ˈsɪl·i / Add to word list showing a lack of thought or judgment; not serious and not showing much intelligence: a silly grin

1 day ago · Silly describes something that can't be taken seriously. You might not mind telling silly jokes, but you don't want to be told a project you've worked hard at is silly. Silly originally …

Definition of silly adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Nov 29, 2025 · Adjective silly (comparative sillier, superlative silliest) Laughable or amusing through foolishness or a foolish appearance. They were laughing at a silly joke. silly grin

If you say that someone or something is silly, you mean that they are foolish, childish, or ridiculous. My best friend tells me that I am silly to be upset about this. You silly boy; why did …

Having or exhibiting a lack of good judgment or common sense; foolish. See Synonyms at foolish. 2. Lacking seriousness or responsibleness; frivolous: indulged in silly word play; silly pet …

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silly definition: lacking in common sense or intelligence. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "knock silly", "silly …

SILLY definition: weak-minded or lacking good sense; stupid or foolish. See examples of silly used in a sentence.