urgency vs urgent

urgency is a noun but urgent is not a noun.

Word	Noun	Adjective	Verb	Adverb
urgency	Yes	No	No	No
urgent	No	Yes	No	No

urgency (noun)	urgent (noun)
pressing importance requiring speedy action
insistent solicitation and entreaty
the state of being urgent; an earnest and insistent necessity
an urgent situation calling for prompt action

urgency (adjective)	urgent (adjective)
	compelling immediate action