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

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

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 result large …

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 was …

What Does “Significant” Mean? Definition: The term “significant” is an adjective that primarily denotes something that is important, notable, or of considerable importance, effect, or influence. It often …

significant, adj., adv., & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

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

WordReference Random House Learner's Dictionary of American English © 2025 sig•nif•i•cant /sɪgˈnɪfɪkənt/ adj. important; of consequence: a significant event in world history. having a special, …

Define significant. significant synonyms, significant pronunciation, significant translation, English dictionary definition of significant. adj. 1. a. Having or expressing a meaning: Are the markings on the …