Fashionable (adjective)

1. In accordance with the current trend or style.
2. Popular or widely accepted among a particular group or at a particular time.

Origin:

From middle english fashionable, from old french fashionable, from fashioner ("to fashio.n")

Examples:

1. The color pink is fashionable this season.
2. He is always dressed in fashionable clothes.
3. The restaurant is a fashionable spot for celebrities.
4. The fashionable hairstyle was worn by most of the models in the show.
5. The fashionable idea of the time was to travel to the moon.