initiated ppl adjective & noun. 
[ɪ'nɪʃɪeɪtɪd] L16.[from INITIATE verb + -ED1.]A.  ppl adjective. That has been initiated. 
L16.b. noun.
1.  An initiate. 
M18.2.  collect. pl. The people who have been initiated. 
M19.■ A. Eden A catch was concealed which the initiated could press to open a door.  [TahlilGaran] English Dictionary ▲