The Italian term "riservato, segreto, segreto" matches the English term "secret"

other italian words that include "riservato" : english :
decente, riservato discreet
riservato offish
riservato reserved
riservato undercover
other italian words that include "segreto" : english :
segreto clandestine
cassetto segreto hidden safe
indovinello, segreto mystery
segreto underhand