'Treasonably' definitions:

Definition of 'treasonably'

(from WordNet)
adverb
In a disloyal and faithless manner; "he behaved treacherously"; "his wife played him false" [syn: faithlessly, traitorously, treacherously, treasonably, false]

Definition of 'Treasonably'

From: GCIDE
  • Treasonable \Trea"son*a*ble\, a. Pertaining to treason; consisting of treason; involving the crime of treason, or partaking of its guilt. [1913 Webster]
  • Most men's heads had been intoxicated with imaginations of plots and treasonable practices. --Clarendon. [1913 Webster]
  • Syn: Treacherous; traitorous; perfidious; insidious. [1913 Webster] --{Trea"son*a*ble*ness}, n. -- {Trea"son*a*bly}, adv. [1913 Webster]