tension vs tensional

tension is a noun but tensional is not a noun.

Word	Noun	Adjective	Verb	Adverb
tension	Yes	No	No	No
tensional	No	Yes	No	No

tension (noun)	tensional (noun)
the action of stretching something tight
(physics) a stress that produces an elongation of an elastic physical body
feelings of hostility that are not manifest
the physical condition of being stretched or strained
a balance between and interplay of opposing elements or tendencies (especially in art or literature)
(psychology) a state of mental or emotional strain or suspense

tension (adjective)	tensional (adjective)
	of or relating to or produced by tension