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.

Jan 4, 2026 · Silly is usually taken to imply a less serious degree of foolishness, mental impairment, or hilarity than its synonyms. The sense meaning stupefied is usually restricted to …

Collins Concise English Dictionary © HarperCollins Publishers:: silly /ˈsɪlɪ/ adj ( -lier, -liest) lacking in good sense; absurd frivolous, trivial, or superficial dazed, as from a blow n (modifier) (of a …

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

Definition of silly. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

silly me: used as an admission of foolish behaviour or of a mistake or misunderstanding on the part of the speaker. Also used ironically to imply that something is not at all obvious or logical.

Some common synonyms of silly are asinine, fatuous, foolish, and simple. While all these words mean "actually or apparently deficient in intelligence," silly suggests failure to act as a rational …