Webster's Revised Unabridged Dictionary · 1913

Fashionable

Fashionable , adjective

1.
Conforming to the fashion or established mode; according with the prevailing form or style; as, a fashionable dress.
2.
Established or favored by custom or use; current; prevailing at a particular time; as, the fashionable philosophy; fashionable opinions.
3.
Observant of the fashion or customary mode; dressing or behaving according to the prevailing fashion; as, a fashionable man.
4.
Genteel; well-bred; as, fashionable society.
Time is like a fashionable host That slightly shakes his parting guest by the hand. — Shakespeare

Fashionable , noun

A person who conforms to the fashions; -- used chiefly in the plural.