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Use "wastefully" in a sentence
"In sum, if forms that should have been filled out in triplicate were, wastefully, filled out in quadruplicate, or alternatively, filled out malfeasantly in duplicate, I will leave no stone unturned to identify the culprits."
"It just expends your energy wastefully—purposelessly."
"Davis saved from Beckford, and the Leicester substitute Nathan Delfouneso, signed on loan from Aston Villa, blazed over before Lee Holmes was wastefully wide late on to sum up Saints' night."