backward vs sweptback

backward and sweptback both are adjectives.

Word	Noun	Adjective	Verb	Adverb
backward	No	Yes	No	Yes
sweptback	No	Yes	No	No

backward (adjective)	sweptback (adjective)
directed or facing toward the back or rear	used of hair
(used of temperament or behavior) marked by a retiring nature	(especially of aircraft wings) angled rearward from the point of attachment
retarded in intellectual development
having made less than normal progress

backward (adverb)	sweptback (adverb)
in a manner or order or direction the reverse of normal
in or to or toward a past time
at or to or toward the back or rear