consistency vs consistent

consistency is a noun but consistent is not a noun.

Word	Noun	Adjective	Verb	Adverb
consistency	Yes	No	No	No
consistent	No	Yes	No	No

consistency (noun)	consistent (noun)
the property of holding together and retaining its shape
(logic) an attribute of a logical system that is so constituted that none of the propositions deducible from the axioms contradict one another
a harmonious uniformity or agreement among things or parts
logical coherence and accordance with the facts

consistency (adjective)	consistent (adjective)
	(sometimes followed by `with') in agreement or consistent or reliable
	marked by an orderly, logical, and aesthetically consistent relation of parts
	capable of being reproduced
	the same throughout in structure or composition