ineloquent

from The Collaborative International Dictionary of English v.0.48

Ineloquent \In*e"lo*quent\, a. [L. ineloquens: cf. F.
   in['e]loquent. See {In-} not, and {Eloquent}.]
   Not eloquent; not fluent, graceful, or moving; not
   persuasive; as, ineloquent language.
   [1913 Webster]

         Nor are thy lips ungraceful, sire of men,
         Nor tongue ineloquent.                   --Milton.
   [1913 Webster]