1. (a.) Conforming to the fashion or established mode; according with the prevailing form or style; as, a fashionable dress.

2. (a.) Established or favored by custom or use; current; prevailing at a particular time; as, the fashionable philosophy; fashionable opinions.

3. (a.) Observant of the fashion or customary mode; dressing or behaving according to the prevailing fashion; as, a fashionable man.

4. (a.) Genteel; well-bred; as, fashionable society.

5. (n.) A person who conforms to the fashions; -- used chiefly in the plural.

Beau Brummel a la mode advanced all the rage all the thing arbiter of fashion avant-garde chic clotheshorse clubman clubwoman contemporary current dandy dashing deb debutante exclusive far out fashion plate fop forward-looking hip in in fashion in style in vogue man-about-town mod modern modernistic modernized modish mondain mondaine new newfashioned now popular present-day present-time prevalent progressive smart socialite streamlined stylish subdeb subdebutante swank swinger swish taste-maker tone-setter trend-setter trendy twentieth-century ultra-ultra ultramodern up-to-date up-to-datish up-to-the-minute way out with it with-it