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,” …

Silly (band), an East German rock group from the 1970s The Sillies, an American punk rock band formed in 1977 Silly (album), the 2008 debut album by Taiwanese singer and songwriter …

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 …

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

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