never-ending

形容词 never-ending:

1. uninterrupted in time and indefinitely long continuing
   同义词：ceaseless, constant, incessant, perpetual, unceasing, unremitting

nev.er-end.ing

adj.（形容词）
Having no foreseeable end:
不断的，无止境的：没有可预见的结果：
例句：
the never-ending search for happiness.
对幸福无尽的寻求