Definitions for: Underhandedly

[adv] slyly and secretly; "Mean revenge, committed underhand"- John Donne; "oldline aristocratic diplomats underhandedly undermined the attempt...to align Germany with the Western democracies"- C.G.Bowers

Webster (1913) Definition: Un"der*hand`ed*ly, adv.
In an underhand manner.

Synonyms: underhand