sig· nif· i· cant | \ sig-ˈni-fi-kənt \

Definition of serious

1: having meaning

especially : SUGGESTIVE

a significant glance

2a: having or likely to possess influence or effect : IMPORTANT

a significant piece of legislation

also : of a noticeably or measurably great deal

a significant number of layoffs

producing significant profits

b: probably caused by something aside from mere chance

statistically significant correlation between vitamin deficiency and disease

Synonyms & Antonyms for significant

Synonyms

eloquent, expressive, meaning, meaningful, pregnant, revealing, revelatory, suggestive

Antonyms

unexpressive

Examples of significant during a Sentence

Historians of ancient gender have seen this as crucially significant. Women in antiquity were by definition so disempowered that the authority of a replacement female ruler could only be captured by representing her within the guise of a person . approximately the argument goes.

— Mary Beard, ny Review of Books, 12 Feb. 2009

While Congress will take a big role in designing new regulation and isn’t likely to rubber-stamp the administration’s proposals, momentum is robust for the creation of comprehensive financial reform.

— Marc I. Seltzer et al., Commonweal, 19 June 2009

Recent Examples on the online

Cars yielded more often to female and white pedestrians than male and nonwhite pedestrians, although not enough either thanks to register as statistically significant.

— Ezra Dyer, Car and Driver, “New Study Says Expensive Cars Are Bought by Jerks Who Won’t Yield,” 28 Feb. 2020

While there was tons at stake, the potential reward was significant.

— Dan Amos, Fortune, “Being a CEO is more tenuous than ever. I survived 30 years at Aflac by managing risks,” 27 Feb. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word ‘significant.’ Views expressed within the examples don’t represent the opinion of Merriam-Webster or its editors. Send us feedback.

More Definitions for significant

significant adjective

English Language Learners Definition of serious

: large enough to be noticed or have an impact

: vital

: having a special or hidden meaning

See the complete definition for significant within the English Learners Dictionary

significant adjective

sig· nif· i· cant | \ sig-ˈni-fi-kənt \

Kids Definition of serious

1: having a special or hidden meaning

The teacher gave them a big smile.

2: IMPORTANT sense 1

These changes are significant.

3: large enough to be noticed

He donated a big amount of cash .

significant adjective

sig· nif· i· cant | \ sig-ˈnif-i-kənt \

Medical Definition of serious

: probably caused by something aside from mere chance

a statistically significant correlation between diet and disease