negative regulation of blood vessel endothelial cell differentiation
Any process that stops, prevents, or reduces the frequency, rate or extent of blood vessel endothelial cell differentiation.
GO:0045602
negative regulation of endothelial cell differentiation
is_a
GO:0110057
regulation of blood vessel endothelial cell differentiation
is_a
GO:0060837
blood vessel endothelial cell differentiation
negatively_regulates