unchic

/ʌnˈʃiːk/
adjective
  1. Not stylish, fashionable, or elegant; unfashionable.
    • Her outfit was completely unchic, with mismatched patterns and colors.
    • The restaurant's décor was unchic and felt like it was stuck in the 1980s.
    • Wearing socks with sandals is considered unchic by many fashion experts.
Antonyms
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