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

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 meant “happy,” which …

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 you tramp about so …

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

Find 116 different ways to say SILLY, along with antonyms, related words, and example sentences at Thesaurus.com.

I like a man who can be silly without being immature. He made a silly face. He has a silly sense of humor.

Mar 17, 2026 · Adjective silly (comparative sillier, superlative silliest) Laughable or amusing through foolishness or a foolish appearance. They were laughing at a silly joke. silly grin

Find 5,648 synonyms for silly and other similar words that you can use instead based on 20 separate contexts from our thesaurus.

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