Source : WordNet®

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}] [ant: {synthetic}]