Words similar to invulnerable

Example sentences for: invulnerable

How can you use “invulnerable” in a sentence? Here are some example sentences to help you improve your vocabulary:

("I paid for that microphone" probably came from a Spencer Tracy political comedy; his faith in an invulnerable "Star Wars" nuclear shield perhaps came from the "inertia projector" portrayed in a 1940 movie in which he starred.)
Advanced cryptography could be used to make phone conversations impregnable to wiretap and financial records invulnerable to subpoena.
The Moors governed their Iberian kingdoms from across the border in Seville, but the Algarve had its own regional capital and huge, invulnerable fortress.
In his life Paz made himself invulnerable, but in his writing he kept his eyes, ears, and heart open.
Niven wouldn't get a laugh here: Myers has rendered himself invulnerable to the incinerating one-liners of prudes and sniggerers.