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