Entry Word: infidelity

Function: noun

Meaning: 1 lack of faithfulness especially to oneʼs husband or wife <infidelity can lead to divorce>

Synonyms disloyalty, faithlessness, falseness, falsity, inconstancy, perfidiousness, perfidy, unfaithfulness

Related Words adultery; betrayal, double-cross, double-dealing, duplicity, sellout, treachery, treason; deceit, deception, lying

Near Antonyms staunchness, steadfastness; dependability, reliability; honesty, trustworthiness

Antonyms allegiance, constancy, devotedness, devotion, faith, faithfulness, fealty, fidelity, loyalty

2 the act or fact of violating the trust or confidence of another <the one thing that the political boss will not forgive is infidelity> — see betrayal