Meaning of the word unfaithfulness in English

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

unfaithfulness

US /ʌnˈfeɪθ.fəl.nəs/
UK /ʌnˈfeɪθ.fəl.nəs/

Noun

the quality or state of being unfaithful; disloyalty

Example:
His unfaithfulness led to the breakdown of their marriage.
The general was accused of unfaithfulness to his country.