Tainted adjective – Containing foreign or lower-grade substances. Uncommon and tainted are semantically related. In some cases you can use "Uncommon" instead an adjective "Tainted". Nearby Words: taint, tainting
One of the Warcraft novels notes that it was not uncommon among the Forsaken to dress as priests of the Light and "mock the order by wearing their garments and allowing the sacred robes to be soiled and tainted by their bloody work."