hidden

  1. adjective
    not accessible to view; "concealed (or hidden) damage"; "in stormy weather the stars are out of sight"
  2. adjective
    covered from view; "her face buried (or hidden) in her hands"; "a secret buried deep within herself"
  3. adjective
    difficult to find; "hidden valleys"; "a hidden cave"; "an obscure retreat"
  4. adjective
    designed to elude detection; "a hidden room or place of concealment such as a priest hole"; "a secret passage"; "the secret compartment in the desk"