negative regulation of mesenchymal cell proliferation involved in lung development
Any process that stops, prevents or reduces the frequency, rate or extent of mesenchymal cell proliferation involved in lung development.
GO:0051093
negative regulation of developmental process
is_a
GO:0051241
negative regulation of multicellular organismal process
is_a
GO:0072201
negative regulation of mesenchymal cell proliferation
is_a
GO:0060916
mesenchymal cell proliferation involved in lung development
negatively_regulates