unprincipled vs unscrupulous

unprincipled and unscrupulous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unprincipled	No	Yes	No	No
unscrupulous	No	Yes	No	No

unprincipled (adjective)	unscrupulous (adjective)
lacking principles or moral scruples	without scruples or principles
having little or no integrity