declasse

/ˌdeɪklɑˈseɪ/
adjective
  1. Having fallen from a higher social class or status; no longer considered fashionable or respectable.
    • The once-elegant neighborhood became declasse as the buildings fell into disrepair.
    • After losing his fortune, he felt declasse among his former friends.
    • She refused to wear last year's dress, calling it declasse.
What does "declasse" mean? | whatsthatwordmean | whatsthatwordmean