billennial

Adjective

billennial (not comparable)

1. Pertaining to an age or duration of 2,000 years.
   • But Dr. Niebuhr has gone beyond all that, and the "soaring of his soul" into millennial, billennial, and even trillennial prophecy seems to have boundless possibilities.1934, Edith Abbott, Sophonisba Preston Breckinridge, The Social Service Review, page 383
   • While the lack of privacy was precisely what made Ballard's billennial city, Harrison's New York, Hersey's New Haven, and Silverberg's urban monads so horrific, the citizens of Brin's global society rejoice in the disappearance of an informational privacy that they have come to regard as nothing...2008, Ursula K. Heise, Sense of Place and Sense of Planet, →ISBN