Synonyms for Two-timing | Two-timing at Open Dictionary of English by LearnThat Foundation

Synonyms for Two-timing (same or very similar meaning)

WordNet sense 1 (not faithful to a spouse or lover):

cheating

WordNet sense 2 (having sexual relations with someone other than your husband or wife, or your boyfriend or girlfriend):

unfaithful

From the ODE community, based on WordNetadd/edit