insistency vs urgency

insistency and urgency both are nouns.

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

As nouns, urgency is a hypernym of insistency; that is, urgency is a word with a broader meaning than insistency:

insistency (noun)	urgency (noun)
the act of insisting on something	pressing importance requiring speedy action
the state of demanding notice or attention	insistent solicitation and entreaty
	the state of being urgent; an earnest and insistent necessity
	an urgent situation calling for prompt action