Im*por"tu*nate*ness

from The Collaborative International Dictionary of English v.0.48

Importunate \Im*por"tu*nate\ ([i^]m*p[^o]r"t[-u]*n[asl]t), a.
   [See {Importune}.]
   1. Troublesomely urgent; unreasonably solicitous;
      overpressing in request or demand; urgent; teasing; as, an
      importunate petitioner, curiosity. --Whewell.
      [1913 Webster]

   2. Hard to be borne; unendurable. [R.] --Donne. --
      {Im*por"tu*nate*ly}, adv. -- {Im*por"tu*nate*ness}, n.
      [1913 Webster]