stultiloquent

from The Collaborative International Dictionary of English v.0.48

Stultiloquent \Stul*til"o*quent\, a. [Cf. L. stultiloquus. See
   {Stultiloquence}.]
   Given to, or characterized by, silly talk; babbling. --
   {Stul*til"o*quent*ly}, adv.
   [1913 Webster]