Source : Webster's Revised Unabridged Dictionary (1913)

Verbose \Ver*bose"\, a. [L. verbosus, from verbum a word. See
   {Verb}.]
   Abounding in words; using or containing more words than are
   necessary; tedious by a multiplicity of words; prolix; wordy;
   as, a verbose speaker; a verbose argument.

         Too verbose in their way of speaking.    --Ayliffe.
   -- {Ver*bose"ly}, adv. -- {Ver*bose"ness}, n.

Source : WordNet®

verboseness
     n : an expressive style that uses excessive words [syn: {verbosity}]
         [ant: {terseness}]