Meaning of the word seriousness in English

What does seriousness mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

seriousness

US /ˈsɪr.i.əs.nəs/
UK /ˈsɪə.ri.əs.nəs/

Noun

the quality of being serious or solemn

Example:
The seriousness of the situation was clear to everyone.
He spoke with great seriousness about his plans.