Definition of seriousness in English:

seriousness

noun

mass noun
  • The quality or state of being serious.

    ‘we are aware of the seriousness of the situation’
    ‘she replied with deadly seriousness’
    • ‘Victims and campaign groups believe the crime has not been treated with sufficient seriousness.’
    • ‘At first the idea seems cold and distant, perhaps robbing death of its seriousness.’
    • ‘Calls are supposed to be dealt with by nurses who assess the seriousness of cases before advising callers what to do.’
    • ‘This action marks the change to a new seriousness on both sides of the struggle.’
    • ‘Despite the seriousness of the problems, surgeons were confident the operation had gone well.’
    solemnity, solemnness, earnestness, graveness, gravity, gravitas, soberness, sobriety, sombreness, sternness, grimness, dourness, humourlessness
    importance, significance, consequence, momentousness, moment, weightiness, weight
    severity, severeness, gravity, graveness, acuteness, grievousness, extremity, danger, dangerousness, perilousness
    earnestness, sincerity, wholeheartedness, genuineness
    View synonyms

Phrases

  • in all seriousness

    • Very seriously; not as a joke.

      ‘I ask this question in all seriousness’
      • ‘I ask you in all seriousness to reconsider your ruling.’
      • ‘I am, in all seriousness, tired of being a grown up.’
      • ‘In all seriousness, this is a real problem.’
      • ‘In all seriousness, however, he said he always dreamed of becoming a famous artist.’
      • ‘Victory, however, was not, in all seriousness, an option.’
      • ‘He believes in all seriousness that within five years he will be able to graft wings on to a human being's body.’
      • ‘In all seriousness, talking is the new sex.’
      • ‘In all seriousness, I'm loving the other guest bloggers.’
      • ‘I must ask you, in all seriousness, to stop this business.’
      • ‘In all seriousness, he asks a great question.’

Pronunciation

seriousness

/ˈsɪərɪəsnəs/