rascally

rascal +‎ -y.

rascally (comparative more rascally, superlative most rascally)

1. Like a rascal.

   I'm going to get you, you rascally rabbit!

rascally (comparative more rascally, superlative most rascally)

1. In the manner of a rascal.
   • 1749, Henry Fielding, The History of Tom Jones, a Foundling. In Six Volumes, volume (please specify |volume=I to VI), London: Printed by A[ndrew] Millar, […], OCLC 928184292:

     “I hope,” said Jones, “you don’t intend to leave me in this condition.” “Indeed but I shall,” said the other. “Then,” said Jones, “you have used me rascally, and I will not pay you a farthing.”

• scalarly