trea·son·able /ˈtriznəbəl, ˈtrizṇəbəl/
  (a.)叛逆的,謀叛的,不忠的
  Trea·son·a·ble a. Pertaining to treason; consisting of treason; involving the crime of treason, or partaking of its guilt.
     Most men's heads had been intoxicated with imaginations of plots and treasonable practices.   --Clarendon.
  Syn: -- Treacherous; traitorous; perfidious; insidious.
  --Trea*son*a*ble*ness, n. -- Trea*son*a*bly, adv.
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  treasonable
       adj : constituting treason; "a traitorous act"; "treasonable acts
             like sabotage" [syn: traitorous, treasonous]