demoniacal
adj 1: in a murderous frenzy as if possessed by a demon; "the
soldier was completely amuck"; "berserk with grief";
"a berserk worker smashing windows" [syn: {amuck}, {amok},
{berserk}, {demoniac}, {possessed(p)}]
2: resembling or suggesting possession by a demon; "demoniac
energy"; "a demoniacal fit" [syn: {demoniac}]