tendentious vs tendency

tendentious is not a noun while tendency is a noun.

Word	Noun	Adjective	Verb	Adverb
tendentious	No	Yes	No	No
tendency	Yes	No	No	No

tendentious (noun)	tendency (noun)
	a characteristic likelihood of or natural disposition toward a certain condition or character or effect
	an attitude of mind especially one that favors one alternative over others
	an inclination to do something
	a general direction in which something tends to move

tendentious (adjective)	tendency (adjective)
having or marked by a strong tendency especially a controversial one