Any process that decreases the rate, frequency or extent of the transition where a mesenchymal cell establishes apical/basolateral polarity,forms intercellular adhesive junctions, synthesizes basement membrane components and becomes an epithelial cell that will contribute to the shaping of the metanephros.
Taxonomy/Path:
GO : negative regulation of morphogenesis of an epithelium / negative regulation of mesenchymal to epithelial transition involved in metanephros morphogenesis