Any process that stops, prevents, or reduces the rate of differentiation of regulatory T cells.
Comment:
Note that immunologists typically use the word 'development' to refer to cells of B or T cell lineages undergoing the process that GO describes as 'cell differentiation'.
Synonyms:
exact_synonym:
down regulation of regulatory T cell differentiation; downregulation of regulatory T cell differentiation; negative regulation of regulatory T lymphocyte differentiation; negative regulation of suppressor T cell differentiation
narrow_synonym:
inhibition of regulatory T cell differentiation
related_synonym:
negative regulation of regulatory T cell development