Synonyms of unfashionable

1 Syllable

out, démodé, passé

2 Syllables

frumpish, frumpier, tacky, dowdier, dated, has-been, frumpy, old-school, passe, time-worn, cast-off, old-hat, olden, dowdy, castoff, passer

3 Syllables

styleless, outmoded, disused, demode, demoded, old-fangled, unstylish, outdated, dinosaur

4 Syllables

inelegant, out-of-fashion, anachronous, old-fashioned, antiquated, out-of-style, obsolete

5 Syllables

anachronistic