unslayable

That man was like a cockroach, seemingly unslayable where most around him fell.

Torchwood: Miracle Day – episode one 2011

Zerchi was vaguely aware, most of the time, of his own inclination toward hasty or impulsive action when confronted by unslayable dragons.

A Canticle for Leibowitz Miller, Walter M. 1959

Vasava or the Lord of the waters, who were possessed of every merit, who were almost unslayable, and who were desirous of achieving thy object, have in battle been slain by the Pandavas.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 3 Books 8, 9, 10, 11 and 12 Kisari Mohan [Translator] Ganguli

And beholding him decked with his ear-rings and mail, Yudhishthira thought him to be unslayable in fight, and was exceedingly pained at it.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1 Books 1, 2 and 3 Kisari Mohan [Translator] Ganguli

Thou didst frequently hear the words of Drona and Bhishma, speaking in the presence of all the kings, that the two Krishnas are unslayable.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 3 Books 8, 9, 10, 11 and 12 Kisari Mohan [Translator] Ganguli

Bhishma and Drona, equal unto Indra and Vishnu, those crushers of foremost of cars and steeds and elephants, those heroes that were unslayable, slain by the foe, I do not still experience any fear in this battle.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 3 Books 8, 9, 10, 11 and 12 Kisari Mohan [Translator] Ganguli

It hath been said that horses, forming as they do a portion of the Kshatriya's chariot, are, on that account, unslayable.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1 Books 1, 2 and 3 Kisari Mohan [Translator] Ganguli

It was through my grace that he had hitherto been unslayable of all creatures.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1 Books 1, 2 and 3 Kisari Mohan [Translator] Ganguli

Why, too, was he invincible of all creatures and unslayable of all?

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1 Books 1, 2 and 3 Kisari Mohan [Translator] Ganguli

It is for these that I am unslayable in the worlds.

The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1 Books 1, 2 and 3 Kisari Mohan [Translator] Ganguli