The Collaborative International Dictionary
Importunacy
Importunacy \Im*por"tu*na*cy\, n. [From Importunate.] The quality of being importunate; importunateness.
Wiktionary
importunacy
n. 1 The quality of being importunate. 2 Constant demanding and pressure; importunity.
Usage examples of "importunacy".
Though he still winced from the recollection, he was sorry that he had resisted the importunacy of Basil's apology.
Well aware of the fatal results of importunacy she resisted a temptation to ask him what progress he had made towards settling her affairs, and was soon rewarded for her restraint.
Then she gathered it close about her, and knocked with vibrant, low importunacy, that didn't break off to wait even for an instant.