- having the qualities of a devil; devilish; fiendish; outrageously wicked: a diabolic plot.
- pertaining to or actuated by a devil.
Origin of diabolic
Examples from the Web for diabolically
We were back to the same old world where our enemies were everywhere, and they were diabolically clever.What ‘Homeland’ Could Learn From ‘The Americans’
May 2, 2013
I have been to diabolically crowded shows of art by van Gogh, Vermeer, and Caravaggio, at the Met and elsewhere.Our ‘Crush’ on McQueen
August 3, 2011
A nation gaped on as she fumbled for words, diabolically mixed metaphors and lay her head on the desk in outrage.Paula Abdul's Live To Dance Comeback
January 5, 2011
My fancies have not deceived me—I love you ecstatically, diabolically, as a madman might!Poor Folk
Ah, she had always been diabolically clever, unscrupulously ambitious!Ghetto Comedies
Yes, the device was simple, diabolically simple, and adequate.Heart of the Blue Ridge
These Robots, diabolically developed, were upon the verge of revolt.
Diabolically clever, too, in his way, but an idealist at heart.The Way of Ambition
- of, relating to, or proceeding from the devil; satanic
- befitting a devil; extremely cruel or wicked; fiendish
- very difficult or unpleasant
Word Origin and History for diabolically
late 14c., from Old French diabolique (13c.), from Late Latin diabolicus, from Ecclesiastical Greek diabolikos "devilish," from diabolos (see devil (n.)).