The Collaborative International Dictionary of English v.0.48:
Sacrosanct \Sac"ro*sanct\, a. [L. sucrosanctus.] Sacred; inviolable. [R.] --Dr. H. More. [1913 Webster]WordNet (r) 3.0 (2006):
sacrosanct adj 1: must be kept sacred [syn: inviolable, inviolate, sacrosanct]