B2adjective1K

Significant

UK /["/sɪɡˈnɪfɪkənt/"]/US /["/sɪɡˈnɪfɪkənt/"]/

Definition

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

In simple words: Important or meaning a lot.

Examples

  • The research showed a significant improvement in patient outcomes.
  • His significant contributions to the project were recognized by the entire team.
  • There was a significant difference between the two groups in the study.
  • The event was significant in shaping the future of the community.
  • She made a significant impact on the lives of the children she taught.

Usage notes

Used in academic and formal contexts to indicate importance. Avoid in very casual conversations; instead, use simpler words like 'big' or 'important'.

Grammar pattern

significant + noun

Memory hint

Think 'sign & figure', like a big important sign that you can't miss.

Collocations

  • be
  • prove
  • become
  • extremely
  • fairly
  • very
  • for
  • to

Synonyms

  • important
  • noteworthy
  • consequential
  • major
  • substantial

Antonyms

  • insignificant
  • trivial
  • minor

Common mistakes

  • Confusing 'significant' with 'significance'.
  • Using 'significant' as a noun instead of an adjective.
  • Overusing 'significant' in casual speaking.