Undifferentiated /(?)/

Un·dif·fer·en·ti·a·ted

Undifferentiated

a.
  1. Not differentiated; specifically (Biol.), homogenous, or nearly so; -- said especially of young or embryonic tissues which have not yet undergone differentiation (see Differentiation, 3), that is, which show no visible separation into their different structural parts. (Biol.)