irremeable
Admitting no return; from or by which one cannot return.
obsolete
So pushed me forward even to the brink Of that irremeable burning gulf
Oh , thou hast given me such a glimpse of hell ,
Where it comes from
Borrowed from Latin irremeābilis, from in- (“not”) + remeābilis (“returning”), from remeō. Compare French irréméable. See remeant.
Adapted from the Wiktionary entry irremeable (CC BY-SA 4.0).