run-down vs nonfunctional

run-down and nonfunctional both are adjectives.

Word	Noun	Adjective	Verb	Adverb
run-down	No	Yes	No	No
nonfunctional	No	Yes	No	No

run-down (adjective)	nonfunctional (adjective)
having the spring unwound	not having or performing a function
worn and broken down by hard use	not performing or able to perform its regular function