Definition from Wiktionary, the free dictionary
archvillain (plural archvillains)
- A supreme villain; the most evil or powerful villain
2009 January 6, Clyde Haberman, “We Know About the Mess. Please, Clean Up Carefully.”:
- Madoff is the season's archvillain, accused of having run a Ponzi scheme so vast that future generations may well describe similar swindles as Madoff schemes.