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
- Having a noticeable or important effect.
- Large enough in amount or degree to deserve attention.
- 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
- significance (noun)
- significantly (adverb)
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
crucial
Formalsubstantial
Academicstatistically significant
Professionalnotable
Businessmaterial
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
Related Dictionary Tools
Practice “significant” in a Crossword
Recall this definition from a clue, use crossing letters, and review the word again when you solve it.
Sources & Attribution
JisuPost English editorial entry