Learner's definition of FASHIONABLE
[more fashionable; most fashionable]
1 : currently popular
fashionable clothes [=clothes that are popular; clothes that are in fashion]
She wore a sleek black dress and fashionable [=stylish] shoes.
a fashionable café
It isn't fashionable to express such an opinion these days.
2 : dressing and acting in a way that is currently popular