· incapable of being transgressed or dishonored; "the person of the king is inviolable"; "an inviolable oath"
Antonym(s): violable
· immune to attack; incapable of being tampered with; "an impregnable fortress"; "fortifications that made the frontier inviolable"; "a secure telephone connection"
Synonym(s): impregnable, secure, strong, unassailable, unattackable
· must be kept sacred
Synonym(s): inviolate, sacrosanct
· not capable of being violated or infringed; "infrangible human rights"
Synonym(s): absolute, infrangible