Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “seriousness”

seriousness

noun [U] uk   /ˈsɪə.ri.əs.nəs/ us    /ˈsɪr.i-/

seriousness noun [U] (BAD)

the state of being very bad or severe: I don't think he has any notion of the seriousness of the situation.ImportanceUseful or advantageous

seriousness noun [U] (NOT JOKING)

the state of being serious, rather than intending to be funny: In all seriousness (= completely seriously) now - joking aside - I do think there's a problem here that we've got to get sorted.Lacking humour
(Definition of seriousness from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of seriousness?
Add Cambridge dictionaries to your browser to your website

Definitions of “seriousness” in other dictionaries

Word of the Day

stampede

When animals or people stampede, they all move quickly in the same direction, often because they are frightened.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More