The meaning of SIGNIFICANT is having meaning; especially : full of import : suggestive. How to use significant in a sentence.

Significant definition: important and deserving of attention; of consequence.. See examples of SIGNIFICANT used in a sentence.

She looked at him across the table and gave him a significant smile. Do you think it's significant that he hasn't replied to my letter yet?

Dec 14, 2025 · significant (comparative more significant, superlative most significant) Signifying something; carrying meaning. synonym quotations Synonym: meaningful a significant word or …

SIGNIFICANT meaning: 1 : large enough to be noticed or have an effect; 2 : very important

A significant fact, event, or thing is one that is important or shows something. Time would appear to be the significant factor in this whole drama. ...a very significant piece of legislation. I think it …

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

Use the adjective significant to describe something that is important. Your "significant other" means the person who's most important in your life. A significant result in a scientific study is a …

Synonyms for SIGNIFICANT: major, important, historic, big, substantial, much, meaningful, monumental; Antonyms of SIGNIFICANT: small, minor, little, insignificant, slight, negligible, …

(Definition of significant from the Cambridge Academic Content Dictionary © Cambridge University Press)