concealed

/kənˈsiːld/
adjective
  1. Kept hidden or out of sight; not visible or easily noticed.
    • The spy carried a concealed camera in his pen.
    • She wore a concealed microphone to record the conversation.
    • There is a concealed door behind the bookshelf that leads to a secret room.
Synonyms
verb
  1. Past tense of conceal: to hide something or keep it from being seen or known.
    • The treasure was concealed beneath a pile of old clothes.
    • He concealed his disappointment with a smile.
    • She concealed the note inside a book so no one would find it.
What does "concealed" mean? | whatsthatwordmean | whatsthatwordmean