hidden

/ˈhɪdn/

/ˈhɪdən/

Other forms: hiddenly

Hidden things can't be seen — they're concealed in some way. A hidden video camera inside a teddy bear might secretly be keeping an eye on a new babysitter.

People with hidden feelings don't let their sadness, anger, and joy show; and hidden clues in a treasure hunt can't be easily found. Hidden things can be obscured deliberately (like hidden eggs at an Easter egg hunt), or simply out of view or undetected by you. Hidden is the past participle of hide, from the Old English hydan, which means "to hide or conceal," but also "to bury a corpse."

Definitions of hidden

1. adjective

   not accessible to view
   synonyms: concealed, out of sight

   invisible, unseeable

   impossible or nearly impossible to see; imperceptible by the eye
2. adjective

   designed to elude detection
   “a hidden room or place of concealment such as a priest hole”

   synonyms: secret

   concealed

   hidden on any grounds for any motive
3. adjective

   difficult to find
   “hidden valleys”

   “a hidden cave”

   synonyms: obscure

   concealed

   hidden on any grounds for any motive