backward vs returning

backward and returning both are adjectives.

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

backward (adjective)	returning (adjective)
directed or facing toward the back or rear	tending to be turned back
(used of temperament or behavior) marked by a retiring nature	tending to return to an earlier state
retarded in intellectual development
having made less than normal progress

backward (adverb)	returning (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