insistency vs insistence

insistency and insistence both are nouns.

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

As nouns, insistency and insistence are synonyms defined as:

As nouns, insistency and insistence are synonyms defined as:

Other synonyms of insistency include imperativeness, press, pressure.

insistency (noun)	insistence (noun)
the act of insisting on something	the act of insisting on something
the state of demanding notice or attention	continual and persistent demands
	the state of demanding notice or attention