One who plays at courtship; a fickle lover; a flirt (usually applies only to men).(noun)
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Use "philanderer" in a sentence
"The idea that she was a prostitute or serial philanderer is nothing more than an interpretation."
"To call her husband a philanderer is almost to whitewash him, for he’s used women far less sophisticated, educated, and powerful than he — women particularly susceptible to the rake’s characteristic blend of cajolery and deceit — for his sexual gratification."
"My dear Helen, I do not know what is the feminine of the word philanderer – perhaps philanderess; and I assure she philanderessed with me in the most innocent but decided manner."