hierarchical vs vertical

hierarchical is not a noun while vertical is a noun.

Word	Noun	Adjective	Verb	Adverb
hierarchical	No	Yes	No	No
vertical	Yes	Yes	No	No

hierarchical (noun)	vertical (noun)
	a vertical structural member as a post or stake
	something that is oriented vertically

hierarchical (adjective)	vertical (adjective)
classified according to various criteria into successive levels or layers	at right angles to the plane of the horizon or a base line
	upright in position or posture
	relating to or involving all stages of a business from production to distribution
	of or relating to different levels in a hierarchy (as levels of social class or income group)