oblique vs perpendicular

oblique and perpendicular both are nouns.

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

oblique (noun)	perpendicular (noun)
a diagonally arranged abdominal muscle on either side of the torso	an extremely steep face
any grammatical case other than the nominative	a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point
	a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting
	a straight line at right angles to another line

oblique (adjective)	perpendicular (adjective)
slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled	intersecting at or forming right angles
indirect in departing from the accepted or proper way; misleading	at right angles to the plane of the horizon or a base line
	so steep as to be nearly vertical