refractory vs disobedient

refractory is a noun but disobedient is not a noun.

Word	Noun	Adjective	Verb	Adverb
refractory	Yes	Yes	No	No
disobedient	No	Yes	No	No

refractory (noun)	disobedient (noun)
lining consisting of material with a high melting point; used to line the inside walls of a furnace

refractory (adjective)	disobedient (adjective)
stubbornly resistant to authority or control	not obeying or complying with commands of those in authority
temporarily unresponsive or not fully responsive to a process or stimulus	unwilling to submit to authority
not responding to treatment