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?

Discover everything about the word "SIGNIFICANT" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

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

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

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, …

Find 125 different ways to say SIGNIFICANT, along with antonyms, related words, and example sentences at Thesaurus.com.

Holding considerable importance, relevance, or influence. See example sentences, synonyms, and etymology for the adjective significant.

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

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