two–timing

1 a sexual encounter or relationship between a married person and someone other than their spouse he found out about the two-timing when he found a love letter stuffed in the dresser Synonyms cheating, infidelity, misconduct, two-timing, unfaithfulnessRelated Words criminal conversation; free love, promiscuity; disloyalty, faithlessness, falseness, inconstancy, perfidiousness, perfidy, treachery; affair (also affaire), amour, fling, love, love affair, romance; intrigue; attachment, infatuation; entanglement, flirtation; liaison, passionNear Antonyms allegiance, constancy, dedication, devotedness, devotion, fealty, loyalty, steadfastnessAntonyms faithfulness, fidelity

2 the act or fact of violating the trust or confidence of another this repudiation of her campaign pledges is an unconscionable two-timing of the electorate Synonyms backstabbing, business, disloyalty, double cross, faithlessness, falseness, falsity, infidelity, perfidy, sellout, treachery, treason, two-timing, unfaithfulnessRelated Words abandonment, desertion; deceit, deception, double-dealing, duplicity, guile, two-facedness; fraud, informing, lying, snitching, talebearing, trickeryNear Antonyms dependability, reliability, trustworthiness; defense, protection, safeguard, shieldAntonyms allegiance, devotion, faithfulness, fealty, fidelity, loyalty, staunchness, steadfastness