A2adjective1K

Serious

UK /["/ˈsɪəriəs/"]/US /["/ˈsɪriəs/"]/

Definition

bad or dangerous

In simple words: Not joking; important

Examples

  • He has a serious expression on his face.
  • This is a serious problem that needs to be solved.
  • She is serious about studying for her exams.
  • I think he is joking, but he seems serious.
  • You need to take this matter serious if you want to succeed.

Usage notes

Use 'serious' to describe someone who is focused or an important situation. Avoid using it in lighthearted contexts.

Grammar pattern

standalone adjective

Memory hint

Think of a serious face that shows no smiles.

Collocations

  • be
  • look
  • seem
  • extremely
  • fairly
  • very
  • for
  • nothing serious
  • serious enough to warrant something
  • be
  • look
  • sound
  • extremely
  • fairly
  • very
  • about

Synonyms

  • grave
  • earnest
  • important
  • sincere
  • solemn

Antonyms

  • funny
  • light-hearted
  • playful

Common mistakes

  • Confused with 'seriously' as an adverb instead of an adjective.
  • Using 'serious' in a casual context where 'funny' is more appropriate.
  • Mispronouncing it, leading to misunderstanding.