From Longman Dictionary of Contemporary Englishphilandererphi‧lan‧derer /fəˈlændərə $ -ər/ noun [countable] old-fashioned SEX/HAVE SEX WITHa man who has sex with many women, without intending to have any serious relationships → playboy —philandering adjective —philandering noun [uncountable]
Examples from the Corpus
philanderer• Then like a fool he had spoken of Maud, and Sarah had seen him as nothing more than a philanderer.• And the middle-aged philanderer, it turns out, is as mythical as the sexless middle-aged woman.• Universal Pictures wanted Chase to play house philanderer Otter, and the role was offered to him.Origin philanderer (1800-1900) philander “lover” ((17-19 centuries)), from Philander name given to a lover on old plays, from Greek phil- “loving” (from philos; → -PHILE) + aner “man” 