Meaning of the word earnestness in English

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

earnestness

US /ˈɝː.nɪst.nəs/
UK /ˈɜː.nɪst.nəs/

Noun

determination and seriousness, especially when this is without humor:

Example:
Sincerity and earnestness are his strong points.