Infidelity1. (n.) Unfaithfulness to the marriage vow; disloyalty.
2. (n.) Want of faith or belief in some religious system; especially, a want of faith in, or disbelief of, the inspiration of the Scriptures, of the divine origin of Christianity.
3. (n.) Breach of trust; unfaithfulness to a charge, or to moral obligation; treachery; deceit; as, the infidelity of a servant.
Thesaurus Entries
Punic faith, adulterous affair, adultery, affair, agnosticism, amor, amour, apostasy, atheism, bad faith, barratry, breach of faith, breach of promise, breach of trust, cheating, cuckoldry, denial, dereliction, disaffection, disbelief, discredit, disloyalty, entanglement, eternal triangle, faithlessness, falseness, falsity, fickleness, flirtation, forbidden love, gentilism, hanky-panky, heresy, illicit love, inability to believe, inconstancy, incredulity, intrigue, liaison, love affair, mala fides, minimifidianism, misbelief, nonbelief, nullifidianism, perfidy, recreancy, rejection, romance, romantic tie, secularism, traitorousness, treachery, triangle, trothlessness, unbelief, unbelievingness, unfaith, unfaithfulness, unloyalty, unsteadfastness, untrueness