treasonous vs treasonable

treasonous and treasonable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
treasonous	No	Yes	No	No
treasonable	No	Yes	No	No

As adjectives, treasonous and treasonable are synonyms defined as:

treasonous and treasonable: having the character of, or characteristic of, a traitor

Other synonyms of treasonous include faithless, traitorous, unfaithful.

treasonous (adjective)	treasonable (adjective)
having the character of, or characteristic of, a traitor	having the character of, or characteristic of, a traitor