The quality of being unfaithful.
She never engaged herself in any act of infidelity.
Quality - an essential and distinguishing attribute of something or someone.
Disloyalty - the quality of being disloyal.
Self-Seeking, Self-Serving - interested only in yourself; "A self-serving distribution".
Allow, Let, Permit - make it possible through a specific action or lack of action for something to happen; "Just let it be".
Eve, Even, Evening, Eventide - the latter part of the day (the period of decreasing daylight from late afternoon until nightfall); "he enjoyed the evening light across the lake".
Busy, Busybodied, Interfering, Meddlesome, Meddling, Officious - intrusive in a meddling or offensive manner; "Meddling wife".
Bad Temper, Ill Temper - a persisting angry mood; "Bad tempered person".
Affair, Matter, Thing - a vaguely specified concern; "It is none of your affair".
Drinking Glass, Glass - a container for holding liquids while drinking; "Lest the glass should break".
Glass, Looking Glass - a mirror; usually a ladies' dressing mirror.