She choked upon an importunate sob and dug nails into the palms of her hands.
My dear fellow, the A B C of your craft is to dismiss the importunate.
Importunate seems to be used here in the sense of oppressive or overbearing.
"It's too late now, Sonny," he said to the importunate child.
What most annoyed the king at this time was the importunate demands of Lubeck.