lothario
[noun]
Synonyms: gallant, amorist, Casanova, Don Juan, paramour, Romeo

[TahlilGaran] English Synonym Dictionary ▲

Lo‧tha‧ri‧o /ləˈθɑːriəʊ $ ləʊˈθeəə-/ noun [countable]
a man whose main interest is in having sex with as many women as possible without having a serious relationship with any of them. Lothario is a character in Nicholas Rowe's play The Fair Penitent (1703) who persuades a woman to have sex with him, but is later disloyal to her:
the office Lothario

[TahlilGaran] Dictionary of Contemporary English ▲