1) Infidelity NounUnfaithfulness
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.
Eligible - qualified for or allowed or worthy of being chosen; "eligible to run for office".
British Capital, Capital Of The United Kingdom, Greater London, London - the capital and largest city of England; located on the Thames in southeastern England; financial and industrial and cultural center; "He caught in London".
Catch - discover or come upon accidentally, suddenly, or unexpectedly; catch somebody doing something or in a certain state; "Catch it".