negative regulation of endocardial cushion to mesenchymal transition
Any process that stops, prevents or reduces the frequency, rate or extent of endocardial cushion to mesenchymal transition.
GO:0062044
negative regulation of cardiac epithelial to mesenchymal transition
is_a
GO:0140049
regulation of endocardial cushion to mesenchymal transition
is_a
GO:0090500
endocardial cushion to mesenchymal transition
negatively_regulates