endless

adjective

1. tiresomely long; seemingly without end

- endless debates

- an endless conversation

Similar word(s): long, eternal, interminable

2. infinitely great in number

- endless waves

Similar word(s): infinite

3. having no known beginning and presumably no end

- time is endless

Similar word(s): infinite, dateless, sempiternal

4. having the ends united so as to form a continuous whole

- an endless chain

Similar word(s): continuous, uninterrupted