urgency vs criticalness

urgency and criticalness both are nouns.

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

As nouns, criticalness is a hyponym of urgency; that is, criticalness is a word with a more specific, narrower meaning than urgency:

Other hyponyms of urgency include haste, hurry, imperativeness, insistence, insistency, press, pressure, criticality, cruciality.

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