millenarian
/mɪlɪˈnɛːɹɪən/adj
High School
1
Pertaining to the belief in an impending period of one thousand years of peace and righteousness associated with the Second Coming of Christ and his reign on earth.
2
Pertaining to any of various religious or social movements which believe in a coming or ongoing radical change to existing world order.
3
Lasting or expected to last a thousand years.