person of refined taste; sophisticated person; man of the world
Describes someone with cultivated aesthetic sensibilities, worldly experience, and social grace. Often carries a slightly literary or old-fashioned flavor. The three senses overlap heavily in modern usage.
He is known as a person of refined taste and is also well-versed in the arts.
That elderly gentleman is truly a man of the world.
Compound of 粋 (sui, 'refined, chic') and 人 (jin, 'person'). The exact historical derivation is uncertain, but the word has been used since at least the Edo period to describe a person of cultivated taste.