never-ending (
http://definr.com/never-ending)
adj : uninterrupted in time and indefinitely long continuing; "the
ceaseless thunder of surf"; "in constant pain"; "night
and day we live with the incessant noise of the city";
"the never-ending search for happiness"; "the perpetual
struggle to maintain standards in a democracy"; "man's
unceasing warfare with drought and isolation";
"unremitting demands of hunger" [syn:
ceaseless,
constant,
incessant,
perpetual,
unceasing,
unremitting]