Returnless

Seventeen years had rolled on their returnless flight since that night of withering sorrow.

Source: wiktionary

They would do an immensity of labor on their returnless journey to the ocean.

Source: wiktionary

You must hear the judge's decision, remorselessly giving up the woman with her children born and unborn, into the hands of their claimants--by them to be carried to the slave prison, and thence to be sold to a returnless distance from the remaining but scattered fragments of her once happy family.

Source: wiktionary

—but now false Memory loosed Her time-worn cable from the wilder'd mind, Blotting the chart whereon it loved to gaze Mid the dim ocean of returnless years.—

Source: wiktionary