Any process that decreases the rate, frequency or extent of mast cell differentiation, the process in which a relatively unspecialized myeloid precursor cell acquires the specialized features of a mast cell. A mast cell is a cell that is found in almost all tissues containing numerous basophilic granules and capable of releasing large amounts of histamine and heparin upon activation. (Gene Ontology, GO_0060377)
1 genes participating in the negative regulation of mast cell differentiation biological process from the curated GO Biological Process Annotations 2015 dataset.
