unfashionable - definition and synonyms

adjective 

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/ʌnˈfæʃ(ə)nəb(ə)l/
  1. not popular or not what most people like, do, or approve of at a particular time

    I admired him, though it was unfashionable to say so.

    1. a.
      wearing clothes that are not popular with most people at a particular time

      She felt boring and unfashionable.

derived word

unfashionably

adverb

His hair was unfashionably long.