ungraded vs nonhierarchical

ungraded and nonhierarchical both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ungraded	No	Yes	No	No
nonhierarchical	No	Yes	No	No

ungraded (adjective)	nonhierarchical (adjective)
not arranged in order hierarchically	not classified hierarchically
(of roads) not leveled or drained; unsuitable for all year travel