ENGLISH DICTIONARY

Significant

Definition, Meaning & Examples

Pronunciation /sɪɡˈnɪfɪkənt/ · Part of speech adjective

Quick meaning: Significant is an adjective meaning important or large enough to be noticed or to have an effect.

Meaning

important or large enough to be noticed or to have an effect.

More Meanings

  1. Having a noticeable or important effect.
  2. Large enough in amount or degree to deserve attention.
  3. Expressing a meaning, idea, or message.

Example Sentences

The research produced a significant improvement in accuracy.
There is a significant difference between the two approaches.
Her support played a significant role in the project's success.

Word Forms

Common Phrases

Synonyms for significant

Depending on context, synonyms include important, considerable, substantial, meaningful, notable, major.

Antonyms for significant

Common opposites include insignificant, trivial, minor, negligible.

Related Words

Related dictionary entries include significance, significantly, essential, crucial, remarkable.

Better Words for Significant

Stronger

crucial

Formal

substantial

Academic

statistically significant

Professional

notable

Business

material

Usage

Significant often emphasizes a noticeable effect, measurable size, or importance supported by evidence. Important is broader and more direct.

Significant vs Important

Important is the broad everyday choice. Significant often points to a noticeable effect, meaningful result, or measurable difference.

Common Mistakes

Do not assume significant always means “very large.” It can also mean meaningful or important. In statistics, “significant” has a specialized technical meaning.

Commonly Confused & Compared Words

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Sources & Attribution

JisuPost English editorial entry