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fiendish

[ feen-dish ]
/ ˈfin dɪʃ /
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SEE MORE SYNONYMS FOR fiendish ON THESAURUS.COM

adjective

diabolically cruel and wicked.

RELATED WORDS

nefarious, brutish, atrocious, beastly, cruel, demonic, devilish, diabolic, evil, hellish, inhuman, malicious, sadistic, satanic, savage, vicious, wicked, demonical

Nearby words

  1. fields, w. c.,
  2. fieldsman,
  3. fieldstone,
  4. fieldwork,
  5. fiend,
  6. fiendishly,
  7. fiennes,
  8. fier,
  9. fierce,
  10. fieri facias

Origin of fiendish

First recorded in 1520–30; fiend + -ish1
Related formsfiend·ish·ly, adverbfiend·ish·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for fiendish

British Dictionary definitions for fiendish

fiendish

/ (ˈfiːndɪʃ) /

adjective

of or like a fiend
diabolically wicked or cruel
informal extremely difficult or unpleasanta fiendish problem
Derived Formsfiendishly, adverbfiendishness, noun
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
Word Origin and History for fiendish

fiendish

adj.

1520s, from fiend + -ish. Related: Fiendishly; fiendishness.

Online Etymology Dictionary, © 2010 Douglas Harper