traitorous vs faithless

traitorous and faithless both are adjectives.

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

As adjectives, traitorous and faithless are synonyms defined as:

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

Other synonyms of traitorous include treasonable, treasonous, unfaithful.

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