conclusively

From conclusive +‎ -ly.

conclusively (comparative more conclusively, superlative most conclusively)

In a conclusive manner; with finality; decisively.
Once the final experiment had been performed, the theory was conclusively proved.
- 1829, Samuel Sheldon Fitch, A System of Dental Surgery, page 14:
  I need not extend the subject any farther; enough has been said , and much more might be, if necessary, to prove clearly and conclusively that the odontotechny of the Greeks and Romans was advanced to a considerable degree of perfection: […]
- 1928, H. R. Hall, The Civilization of Greece in the Bronze Age:
  […] which conclusively prove the enormous superiority of the Sumerian over the Egyptian weaponsmithy.
By way of conclusion.
- 1913, Norman Lindsay, A Curate in Bohemia, Sydney: N.S.W. Bookstall Co., published 1932, page 20:
  "Go and find out who did it, before you come blaming me for it." "It's only youse crowd wot comes makin' a pigsty of the place," said Melons conclusively. "It ain't the second nor third floors wot comes makin' all manner o' mess in these basins."

in a conclusive manner

English