insubordinate vs contumacious

insubordinate and contumacious both are adjectives.

Word	Noun	Adjective	Verb	Adverb
insubordinate	No	Yes	No	No
contumacious	No	Yes	No	No

insubordinate (adjective)	contumacious (adjective)
not submissive to authority	wilfully obstinate; stubbornly disobedient
disposed to or engaged in defiance of established authority