— diabolically , adv. — diabolicalness , n.
/duy'euh bol"ik/ , adj.
1. having the qualities of a devil; devilish; fiendish; outrageously wicked: a diabolic plot.
2. pertaining to or actuated by a devil.
Also, diabolical .
[ 1350-1400; ME diabolik ( diabolicus diabolikós, equiv. to diábol ( os ) DEVIL + -ikos -IC ]