urgency vs criticality

urgency and criticality both are nouns.

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

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

urgency (noun)	criticality (noun)
pressing importance requiring speedy action	a state of critical urgency
insistent solicitation and entreaty	a critical state; especially the point at which a nuclear reaction is self-sustaining
the state of being urgent; an earnest and insistent necessity
an urgent situation calling for prompt action