undeˈterminateness (un-1 12 and 5 b.) 1653H. More Conject. Cabbal. (1713) 184 What Moses may mean by the mobility of the Waters, Plotinus has expressed by..the Indefiniteness or Undeterminateness of Matter.1656tr.T. White's Peripat. Inst. 232 Quantity implying a kind of undeterminatenesse and confusion.