inviolable

Not violable; not to be infringed.

• But come, for thou, be ſure, ſhalt give account / To him who ſent us, whoſe charge is to keep / This place inviolable, and therefore theſe from harm.
• But honeſt men’s words are Stygian oaths, and promiſes inviolable.

Not susceptible to violence, or of being profaned, corrupted, or dishonoured.

Incapable of being injured or invaded; indestructible.