imperativeness vs insistence

imperativeness and insistence both are nouns.

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

As nouns, imperativeness and insistence are synonyms defined as:

imperativeness and insistence: the state of demanding notice or attention

Other synonyms of imperativeness include insistency, press, pressure.

imperativeness (noun)	insistence (noun)
the quality of being insistent	the act of insisting on something
the state of demanding notice or attention	continual and persistent demands
	the state of demanding notice or attention