endless

adjective

1. 1

   having the ends united so as to form a continuous whole

   an endless chain

2. 2

   having no known beginning and presumably no end

   the dateless rise and fall of the tides

   time is endless

3. 3

   infinitely great in number

   endless waves

4. 4

   tiresomely long; seemingly without end

   endless debates

   an endless conversation