nominative vs oblique

nominative and oblique both are nouns.

Word	Noun	Adjective	Verb	Adverb
nominative	Yes	Yes	No	No
oblique	Yes	Yes	No	No

nominative (noun)	oblique (noun)
the category of nouns serving as the grammatical subject of a verb	a diagonally arranged abdominal muscle on either side of the torso
	any grammatical case other than the nominative

nominative (adjective)	oblique (adjective)
serving as or indicating the subject of a verb and words identified with the subject of a copular verb	slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled
appointed by nomination	indirect in departing from the accepted or proper way; misleading
named; bearing the name of a specific person