negative regulation of peptidyl-serine phosphorylation
Any process that stops, prevents, or reduces the frequency, rate or extent of the phosphorylation of peptidyl-serine.
GO:0001933
negative regulation of protein phosphorylation
is_a
GO:0033135
regulation of peptidyl-serine phosphorylation
is_a
GO:0018105
peptidyl-serine phosphorylation
negatively_regulates