negative regulation of T cell costimulation
Any process that stops, prevents or reduces the frequency, rate or extent of T cell costimulation.
GO:0002683
negative regulation of immune system process
is_a
GO:2000523
regulation of T cell costimulation
is_a
GO:0031295
T cell costimulation
negatively_regulates
negative regulation of T cell co-stimulation
exact
negative regulation of T lymphocyte costimulation
exact
negative regulation of T-cell co-stimulation
exact
negative regulation of T-cell costimulation
exact
negative regulation of T-lymphocyte costimulation
exact