archidiabolical

Adjective

 * 1)  Of or relating to an archdevil.
 * 2) * 1933,, “Trotsky and the Art of Insurrection” in Henry Dan Piper (ed.), Think Back on Us . . . A Contemporary Chronicle of the 1930’s by Malcolm Cowley, Carbondale and Edwardsville: Southern Illinois University Press, 1967, p.28,
 * Always Trotsky displays that archidiabolical pride which is both his virtue as an individual and his most dangerous quality as a statesman.