infidelity
noun
[ ɪnfɪˈdɛlɪti ]
• the action or state of being unfaithful to a spouse or other sexual partner.
• "her infidelity continued after her marriage"
Similar:
unfaithfulness,
adultery,
unchastity,
cuckoldry,
extramarital relations,
extramarital sex,
faithlessness,
disloyalty,
falseness,
breach of trust,
treachery,
double-dealing,
duplicity,
deceit,
perfidy,
perfidiousness,
affair,
liaison,
intrigue,
amour,
fooling around,
playing around,
playing the field,
cheating,
two-timing,
hanky-panky,
a bit on the side,
fornication,
• disbelief in a particular religion, especially Christianity.
Origin:
late Middle English (in the senses ‘lack of faith’ and ‘disloyalty’): from Old French infidelite or Latin infidelitas, from infidelis ‘not faithful’ (see infidel).
