Definify.com
Webster 1913 Edition
Demoniacal
{
De-mo′ni-ac
,Demˊo-ni′a-cal
(?; 277)
, } Adj.
1.
Pertaining to, or characteristic of, a demon or evil spirit; devilish;
as, a
demoniac
being; demoniacal
practices.Sarcastic,
demoniacal
laughter. Thackeray.
2.
Influenced or produced by a demon or evil spirit;
“Demoniac frenzy.” as,
. demoniac
or demoniacal
powerMilton.