Wiktionary
nonrecoverable
a. 1 not recoverable; damaged or lost forever 2 having an investment that will not be recovered
Usage examples of "nonrecoverable".
I had to run my zipheads near the edge of a nonrecoverable panic all through the rendezvous.
But you're not talking-we're not talking-about lack of profit, we're talking about a total and nonrecoverable loss, a loss that would run into six figures and break us entirely.