diabolic

[dahy-uh-bol-ik]
adjective
1.
having the qualities of a devil; devilish; fiendish; outrageously wicked: a diabolic plot.
2.
pertaining to or actuated by a devil.
Also, diabolical.


Origin:
1350–1400; Middle English diabolik (< Middle French) < Late Latin diabolicus < Greek diabolikós, equivalent to diábol(os) devil + -ikos -ic

diabolically, adverb
diabolicalness, noun
hyperdiabolical, adjective
hyperdiabolically, adverb
hyperdiabolicalness, noun
nondiabolic, adjective
nondiabolical, adjective
nondiabolically, adverb
nondiabolicalness, noun
superdiabolical, adjective
superdiabolically, adverb
superdiabolicalness, noun
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World English Dictionary
diabolic (ˌdaɪəˈbɒlɪk)
 
adj
1.  of, relating to, or proceeding from the devil; satanic
2.  befitting a devil; extremely cruel or wicked; fiendish
3.  very difficult or unpleasant
 
[C14: from Late Latin diabolicus, from Greek diabolikos, from diabolosdevil]
 
dia'bolically
 
adv
 
dia'bolicalness
 
n

diabolical (ˌdaɪəˈbɒlɪkəl)
 
adj
1.  excruciatingly bad; outrageous
2.  (intensifier): a diabolical liberty
 
dia'bolically
 
adv
 
dia'bolicalness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

diabolic
late 14c., from O.Fr. diabolique (13c.), from L.L. diabolicus, from Gk. diabolikos "devilish," from diabolos (see devil).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
There are diabolically smart surprises wherever you care to look in this glittering thriller.
The word connotes a diabolically clever move or combination that turns the tables on the opponent.
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