Endless definition

(1) Occurring so frequently as to seem ceaseless or uninterrupted

"A child's incessant questions"

"Your perpetual (or continual) complaints"

(2) Having the ends united so as to form a continuous whole

"An endless chain"

(3) Having no known beginning and presumably no end

"The dateless rise and fall of the tides"

"Time is endless"

"Sempiternal truth"

(4) Infinitely great in number

"Endless waves"

(5) Tiresomely long; seemingly without end

"Endless debates"

"An endless conversation"

"The wait seemed eternal"

"Eternal quarreling"

"An interminable sermon"