desperate vs imperative

desperate and imperative both are nouns.

Word	Noun	Adjective	Verb	Adverb
desperate	Yes	Yes	No	No
imperative	Yes	Yes	No	No

desperate (noun)	imperative (noun)
a person who is frightened and in need of help	some duty that is essential and urgent
	a verb in the imperative mood.
	a mood that expresses an intention to influence the listener's behavior

desperate (adjective)	imperative (adjective)
showing extreme courage; especially of actions courageously undertaken in desperation as a last resort	requiring attention or action
fraught with extreme danger; nearly hopeless	relating to verbs in the imperative mood
arising from or marked by despair or loss of hope
showing extreme urgency or intensity especially because of great need or desire
desperately determined
(of persons) dangerously reckless or violent as from urgency or despair