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diabolic

American  
[dahy-uh-bol-ik] / ˌdaɪ əˈbɒl ɪk /

adjective

  1. variant of diabolical.


diabolic British  
/ ˌdaɪəˈbɒlɪk /

adjective

  1. of, relating to, or proceeding from the devil; satanic

  2. befitting a devil; extremely cruel or wicked; fiendish

  3. very difficult or unpleasant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of diabolic

First recorded in 1350–1400; Middle English diabolik, from Middle French or directly from Late Latin diabolicus, from Greek diabolikós, equivalent to diábo(os) devil + -ikos -ic

Explanation

Use the adjective diabolic to describe someone who acts in a terribly cruel way. A diabolic boy might pick up a cat by its tail and swing it around. When people are diabolic, they're evil. The horrible dictator who has thousands of civilians killed commits a diabolic act, and people who abuse children are also diabolic. The bad guy in a fairy tale is always diabolic. You can use diabolic interchangeably with the slightly more common diabolical. Both words have a Greek root, diabolikos, which means "devilish" and comes from diabolus, or "devil."

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"DIABOLIC, DEMONIC" "He was diabolical, demonic," Hickenlooper said.

From Reuters • Jul. 23, 2012

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