n. free thinker, usually used disparagingly; one without moral restraint
The libertine took pleasure in gambling away his family money.
Sentence in Classic:
Yet perhaps the virtue of those reverend sages was too strict for the corrupt and libertine manners of a court: and we often find by experience, that young men are too opinionated and volatile to be guided by the sober dictates of their seniors.
Gulliver's Travels(V2) By Jonathan Swift Context
Such an expression is often mistaken for manly frankness, when in truth it arises from the reckless indifference of a libertine disposition, conscious of superiority of birth, of wealth, or of some other adventitious advantage, totally unconnected with personal merit.