imperative vs desperate

imperative and desperate both are nouns.

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

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

imperative (adjective)	desperate (adjective)
requiring attention or action	showing extreme courage; especially of actions courageously undertaken in desperation as a last resort
relating to verbs in the imperative mood	fraught with extreme danger; nearly hopeless
	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