1Not cleansed or freed from inferior or impure elements. In later use chiefly: (of a group or body) not subjected to a political or ideological purge.
2Not freed or cleared from wrongdoing, accusation, etc.
3Not removed or got rid of by cleansing or purging.
Late Middle English; earliest use found in Lanfranc's Science of Cirurgie. From un- + purge + -ed.