unfashionable
un-fash-ion-a-ble
adjective
Not currently popular or stylish; out of date and no longer desired.
"His tweed jacket looked rather unfashionable."
Thesaurus
Synonyms: unpopular, out of fashion, unstylish, stick-in-the-mud, frumpy, moss-grown, prehistoric, ex, dated, frumpish, dowdy, passe
Antonyms: fashionable, stylish