ceaseless + -ly
ceaselessly (comparative more ceaselessly, superlative most ceaselessly)
- Without ceasing.
- Synonyms: eternally, nonstop, unendingly; see also Thesaurus:continuously
1905, Richard Jefferies, Nature Near London:
So the woods are silent, still, and deserted, save by a stray rabbit among the thistles, and the grasshoppers ceaselessly leaping in the grass.
1925, F[rancis] Scott Fitzgerald, chapter IX, in The Great Gatsby, New York, N.Y.: Charles Scribner’s Sons, OCLC 884653065; republished New York, N.Y.: Charles Scribner’s Sons, 1953, →ISBN, page 182:
So we beat on, boats against the current, borne back ceaselessly into the past.