Importunate
Importunate (im*pôr"tu*nat) , adjective
[See Importune.]
1.
Troublesomely urgent; unreasonably solicitous; overpressing in request or demand; urgent; teasing; as, an importunate petitioner, curiosity. — Whewell
2.
Hard to be borne; unendurable. [Rare] — Donne