In an endless manner; continuously without limit(adverb)
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Use "endlessly" in a sentence
"What burns me up endlessly is how the “Healthcare” or “Whatever it is today” bill contains so much of what the Left has always longed for."
"For people who find (some kind) of satisfaction in endlessly ceaselessly hysterically blaming Israel for everything – the above facts are inconvenient."
"We remain endlessly interested in literary criticism marinating in hatred of Morris Dickstein."