negative regulation of cell differentiation involved in embryonic placenta development
Any process that decreases the rate, frequency or extent of cell differentiation that contributes to the progression of the placenta over time, from its initial condition to its mature state.
GO:0045596
negative regulation of cell differentiation
is_a
GO:0060800
regulation of cell differentiation involved in embryonic placenta development
is_a
GO:2000242
negative regulation of reproductive process
is_a
GO:0060706
cell differentiation involved in embryonic placenta development
negatively_regulates