aspectual vs aspect

aspectual is not a noun while aspect is a noun.

Word	Noun	Adjective	Verb	Adverb
aspectual	No	Yes	No	No
aspect	Yes	No	No	No

aspectual (noun)	aspect (noun)
	the feelings expressed on a person's face
	a characteristic to be considered
	a distinct feature or element in a problem
	the visual percept of a region
	the beginning or duration or completion or repetition of the action of a verb

aspectual (adjective)	aspect (adjective)
of or belonging to an aspect (as an aspect of the verb)