monomath

Etymology

From mono- (“one, single”) + Ancient Greek μάθη (máthē, “learning”), from μανθάνω (manthánō, “to learn”). Compare polymath.

noun

  1. A person with an extensive knowledge of a single subject or field, but little knowledge of others.“It is not a refuge for self-indulgent monomaths to channelize their aggressions within a community of colleagues and students.”