endlessly
adv. manner B2 Upper Intermediate US //ˈɛndɫəsɫi// UK //ˈɛndləsli// end·less·ly
adv. happening for a very long time or repeating many times without stopping. You use this when something feels like it will never finish.
adv. in a manner that continues without a perceived or actual end; incessantly. Often used hyperbolically to describe repetitive or tedious actions.
The children talked endlessly about their summer vacation.
The two scholars debated the meaning of the text endlessly, never reaching a final agreement.
In the desert, the golden dunes seemed to stretch out endlessly toward the horizon, offering no landmarks to guide the weary travelers.
From Middle English endelesly, from Old English endelēaslīċe; equivalent to endless + -ly.
Usage
Typically follows the verb it modifies or appears at the end of the clause.