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.
Smart - showing mental alertness and calculation and resourcefulness; "Don`t try to be smart, be smart".
Lose - fail to win; "We lost buddy".
Mole - small velvety-furred burrowing mammal having small eyes and fossorial forefeet; "Rats and moles are common pests that plague homeowners".