rude vs impolite

rude and impolite both are adjectives.

Word	Noun	Adjective	Verb	Adverb
rude	No	Yes	No	No
impolite	No	Yes	No	No

rude (adjective)	impolite (adjective)
lacking civility or good manners	not polite
belonging to an early stage of technical development; characterized by simplicity and (often) crudeness
socially incorrect in behavior
(used especially of commodities) being unprocessed or manufactured using only simple or minimal processes
(of persons) lacking in refinement or grace