DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   uninflected
       adj 1: (of the voice) not inflected; "uninflected words";
              "monotonic uninflected speech" [ant: inflected]
       2: not inflected; "`boy' and `swim' are uninflected English
          words" [ant: inflected]
       3: expressing a grammatical category by using two or more words
          rather than inflection [syn: analytic, uninflected] [ant:
          synthetic]