"endlessly" in the adverb sense
1. infinitely, endlessly
continuing forever without end
"there are infinitely many possibilities"
2. endlessly, ceaselessly, incessantly, unceasingly, unendingly, continuously
with unflagging resolve
"dance inspires him ceaselessly to strive higher and higher toward the shining pinnacle of perfection that is the goal of every artiste"
3. endlessly
spatial sense) seeming to have no bounds
"the Nubian desert stretched out before them endlessly"
4. interminably, endlessly
all the time seemingly without stopping
"a theological student with whom I argued interminably"
"her nagging went on endlessly"
Source: WordNet® (An amazing lexical database of English)
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