continuous vs constant

continuous is not a noun while constant is a noun.

Word	Noun	Adjective	Verb	Adverb
continuous	No	Yes	No	No
constant	Yes	Yes	No	No

continuous (noun)	constant (noun)
	a quantity that does not vary
	a number representing a quantity assumed to have a fixed value in a specified mathematical context

continuous (adjective)	constant (adjective)
continuing in time or space without interruption	steadfast in purpose or devotion or affection
of a function or curve; extending without break or irregularity	uninterrupted in time and indefinitely long continuing
	unvarying in nature