Definition of seriousness in English:

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Pronunciation: /ˈsirēəsnəs/


The quality or state of being serious: we are aware of the seriousness of the situation she replied with deadly seriousness
More example sentences
  • Calls are supposed to be dealt with by nurses who assess the seriousness of cases before advising callers what to do.
  • At first the idea seems cold and distant, perhaps robbing death of its seriousness.
  • This action marks the change to a new seriousness on both sides of the struggle.


in all seriousness

Very seriously; not as a joke: I ask this question in all seriousness
More example sentences
  • Victory, however, was not, in all seriousness, an option.
  • I am, in all seriousness, tired of being a grown up.
  • I ask you in all seriousness to reconsider your ruling.

For editors and proofreaders

Syllabification: ser·i·ous·ness

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