nonending

For these people, their hillsides stripped of timber and their reservoirs running low, life has become a nonending trek for survival.

Mr. Roop, amusing in his nonending befuddlement, gets considerable mileage and deserved applause from his recitation of a catalogue of confused relationships and misunderstandings.

That was in "Love Letters," the cleverest creation by a playwright (A. R. Gurney) of a nonending gimmick (read annuity) that took the place of "Full Gallop" because Elizabeth Franz became unavailable.