unrecoverable

Unthankfulness, which tends to make them unreconcilable and unrecoverable.

Details were unrecoverable, but the emotions in which they were embedded moved.

It is difficult, this conjuring with the unrecoverable past, so rashly done by us all.

He had done it, and assured me that he didn't regret his lost youth or sigh after its unrecoverable pleasures.

Living criticism, genuine appreciation, is the interest we draw from year to year on the unrecoverable capital of human genius.

The Rani clapped her hands joyfully, for the manœuvre enabled her flying mission to gain an unrecoverable advantage.