Sacrosanct (9)
I believe the answer is:
inviolate
'sacrosanct' is the definition.
(I know that sacrosanct can be written as inviolate)
This is all the clue.
(Other definitions for inviolate that I've seen before include "Entire" , "very safe" , "not to be touched" , "Free from injury" , "unspoiled" .)