Also means
unfaithfulness
Usage Note
Infidélité covers both romantic betrayal (cheating on a partner) and broader forms of disloyalty or inaccuracy (as in une infidélité de traduction, a loose translation). The plural infidélités often refers to repeated acts of cheating. The adjective infidèle (unfaithful, inaccurate) is its direct cognate.
Examples
"Elle ne lui pardonne pas son infidélité."
Natural Translation
She doesn't forgive him his infidelity.

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