Meaning of the word infidelity in English

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

infidelity

US /ˌɪn.fəˈdel.ə.t̬i/
UK /ˌɪn.fɪˈdel.ə.ti/
"infidelity" picture

Noun

the action or state of being unfaithful to a spouse or other sexual partner

Example:
She could not forgive his infidelity after ten years of marriage.
Marital infidelity is a common cause of divorce.