Synonyms of 'roué'
libertineDictionary, rake, swinger (slang)
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a man who leads a life of reckless drinking, promiscuity, and self-indulgence
If you describe a man as a lecher, you disapprove of him because you think he behaves towards women in a way which shows he is only interested in them sexually.
He's just a sad old lecher.
Thesaurus for roué from the Collins English Thesaurus
man given to immoral living