directional vs direction

directional is not a noun while direction is a noun.

Word	Noun	Adjective	Verb	Adverb
directional	No	Yes	No	No
direction	Yes	No	No	No

directional (noun)	direction (noun)
	the act of managing something
	the act of setting and holding a course
	a general course along which something has a tendency to develop
	the concentration of attention or energy on something
	something that provides direction or advice as to a decision or course of action
	a formal statement of a command or injunction to do something
	a message describing how something is to be done
	a line leading to a place or point
	the spatial relation between something and the course along which it points or moves

directional (adjective)	direction (adjective)
relating to or indicating directions in space
relating to direction toward a (nonspatial) goal
showing the way by conducting or leading; imposing direction on