[syn: adulterous, cheating(a), two-timing(a)]
The Collaborative International Dictionary of English v.0.48:
Adulterous \A*dul"ter*ous\, a.
1. Guilty of, or given to, adultery; pertaining to adultery;
illicit. --Dryden.
[1913 Webster]
2. Characterized by adulteration; spurious. "An adulterous
mixture." [Obs.] --Smollett.
[1913 Webster]
WordNet (r) 3.0 (2006):
adulterous
adj 1: characterized by adultery; "an adulterous relationship";
"extramarital affairs"; "the extracurricular activities
of a philandering husband" [syn: adulterous,
extramarital, extracurricular]
2: not faithful to a spouse or lover; "adulterous husbands and
wives"; "a two-timing boyfriend" [syn: adulterous,
cheating(a), two-timing(a)]