traitorous vs treasonable

traitorous and treasonable both are adjectives.

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

As adjectives, traitorous and treasonable are synonyms defined as:

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

Other synonyms of traitorous include faithless, treasonous, unfaithful.

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