An electrical connector configured to retain an electrical terminal including a terminal lock nib that projects inward into a terminal cavity from a first cavity wall for retaining the electrical terminal in the connector body and a flexible cantilever beam that projects axially into the terminal cavity from a fixed end of the cantilever beam. The cantilever beam is located opposite the terminal lock nib and is configured to push the terminal against a second cavity wall and into retaining engagement with the terminal lock nib. The connector also includes a support ridge that projects into the terminal cavity and is configured to contact and restrict movement of a free end of the cantilever beam during insertion of the terminal into the terminal cavity. The terminal has a laterally spaced lock surface engageable with the lock nib and is configured to prevent withdrawal of the terminal from the cavity.