Wiktionary
unreturning
a. Not returning; not coming back.
Usage examples of "unreturning".
Even with thy breath and blood to live and move, And violence and wrong are as a dream Which rolls from steadfast truth, an unreturning stream.
THE SUN-DIAL AT WELLS COLLEGE The shadow by my finger cast Divides the future from the past: Before it, sleeps the unborn hour In darkness, and beyond thy power: Behind its unreturning line, The vanished hour, no longer thine: One hour alone is in thy hands,-- The NOW on which the shadow stands.
And being dead, and powerless to recover The substance of the show whereon we gaze, Shall we be likened to the hapless lover, Who broods upon the unreturning days?