From Longman Dictionary of Contemporary Englishfashionablefash‧ion‧a‧ble /ˈfæʃənəbəl/ ●●● S3 W2 adjective 1 FASHIONABLEpopular, especially for a short period of time OPP unfashionable Strong colours are very fashionable at the moment.it is fashionable (for somebody) to do something It suddenly became fashionable for politicians to talk about green issues.2 EXPENSIVEpopular with, or used by, rich people OPP unfashionablea fashionable resort/area/address etc He runs a fashionable restaurant near the Harbor. —fashionably adverb fashionably dressed womenTHESAURUSfashionable popular at a particular timefashionable clothesIt was fashionable to have red hair.His theories were fashionable in the 1980s.trendy informal modern and fashionable – often used in a slightly disapproving or joking waya trendy tie a trendy restaurantThe area has become very trendy and a lot of artists live there.stylish fashionable and well-designed in an attractive wayShe was wearing a stylish two-piece suit.The furniture looked very stylish and modern.cool informal fashionable – used especially when you think someone or something looks goodMichael looked very cool in his dark jacket and sunglasses.a cool shirthappening [only before noun] informal a happening place is fashionable and livelyLondon has always been a happening place.be in fashion v phrase to be fashionable at a particular timeThe Sixties look is back in fashion.in informal fashionable at a particular time. In is not used before a noun, except in the phrases belowPale colours are in.New York was the in place to be.Yoga has become the in thing to do.
Examples from the Corpusfashionable• It is fashionable at present to suggest that the school curriculum should be relevant.• The store sells fashionable clothes at prices you can afford.• The fleece tops for children come in fashionable colors.• They recently opened a cafe on Manhattan's fashionable East Side.• I've never been very fashionable. I'd rather wear what feels comfortable.• a style of painting that was fashionable in the 1930s• Rather, he was a young and fashionable man who was able to capture the spirit of the dawning era.• Kate spent her summers in Cape Cod working in a fashionable resort.• He runs a very fashionable restaurant in Sag Harbor.• The finale shifts styles in a way now familiar and fashionable through composers such as Schnittke.• But for most women, it was fashionable to refrain from eating long before it became fashionable to be slender.• No doubt this would be considered fashionable today but the thought of going out like that mortified me.• This is the latest style of hat worn by fashionable women in Milan.a fashionable resort/area/address etc• Down Niddry Street stands the charming concert hall which was a fashionable resort in the eighteenth century.From Longman Business Dictionaryfashionablefash‧ion‧a‧ble /ˈfæʃənəbəl/ adjective popular at a particular timefashionable management theoriesIt has became fashionable for politicians to talk about green issues.