The Collaborative International Dictionary of English v.0.48:

Wordiness \Word"i*ness\, n.
   The quality or state of being wordy, or abounding with words;
   verboseness. --Jeffrey.
   [1913 Webster]

WordNet (r) 3.0 (2006):

wordiness
    n 1: boring verbosity [syn: prolixity, prolixness,
         windiness, long-windedness, wordiness]