opinionativeness

from The Collaborative International Dictionary of English v.0.48

Opinionative \O*pin"ion*a*tive\, a.
   1. Unduly attached to one's own opinions; opinionated.
      --Milton.
      [1913 Webster]

   2. Of the nature of an opinion; conjectured. [Obs.] "Things
      both opinionative and practical." --Bunyan. --
      {O*pin"ion*a*tive*ly}, adv. -- {O*pin"ion*a*tive*ness}, n.
      [1913 Webster]