| a. | 1. | Guilty of, or given to, adultery; pertaining to adultery; illicit. |
| 2. | Characterized by adulteration; spurious. |
| Adj. | 1. | adulterous - characterized by adultery; "an adulterous relationship"; "extramarital affairs"; "the extracurricular activities of a philandering husband" Synonyms: extramarital, extracurricular |
| 2. | adulterous - not faithful to a spouse or lover; "adulterous husbands and wives"; "a two-timing boyfriend" Synonyms: cheating, two-timing |
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