DuckCorp Dico

Found one definition

1.                 From English - German Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   uninflected /ˌʌnɪnflˈɛktɪd/ <adj>
   unflektiert <adj>, ungebeugt <adj> [ling.]