fiendish
adjective
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Definition of fiendish
1 : perversely diabolical took a fiendish pleasure in hurting people
2 : extremely cruel or wicked
3 : excessively bad, unpleasant, or difficult fiendish weather
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Synonyms & Antonyms for fiendish
Synonyms
atrocious, barbaric, barbarous, brutal, brute, butcherly, cruel, heartless, inhuman, inhumane, sadistic, savage, truculent, vicious, wanton
Antonyms
benign, benignant, compassionate, good-hearted, humane, kind, kindhearted, sympathetic, tenderhearted
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Examples of fiendish in a Sentence
Recent Examples on the Web
This is one scenario for hurricanes in a warmer world, a subject of fiendish complexity and considerable scientific research, as experts try to tease out the effects of climate change from the influences of natural climate cycles. — David Fleshler, latimes.com, "The world has never seen a Category 6 hurricane. But the day may be coming," 7 July 2018 Let it not be said that there is any less vigor and determination back of the pursuit of the Gordon girl’s fiendish slayer than there would have been had the little victim been white. — Hadley Meares, Los Angeles Magazine, "One of the “Tragic Mysteries in Local History” Has Been All But Forgotten," 7 June 2018 Yet fiendish institutional and legal problems over security abound, and there is little time left to surmount them. — The Economist, "A row over data privacy may upset Britain’s security relations with the EU," 3 May 2018 The divine plan, as seen on TV, is a world in which God designs fiendish plot arcs to eviscerate us all. — Noah Berlatsky, Washington Post, "TV is showing us the dark side of playing God," 5 Jan. 2018 The divine plan, as seen on TV, is a world in which God designs fiendish plot arcs to eviscerate us all. — Noah Berlatsky, Washington Post, "TV is showing us the dark side of playing God," 5 Jan. 2018 Watch the British Open on a linksland course – St. Andrews, say – and take fiendish pleasure in observing players plotting shots as the wind whips their faces sideways. — Paul Daugherty, Cincinnati.com, "Paul Daugherty on Masters 2018: Try to avoid getting 'gusted' this weekend," 6 Apr. 2018 The divine plan, as seen on TV, is a world in which God designs fiendish plot arcs to eviscerate us all. — Noah Berlatsky, Washington Post, "TV is showing us the dark side of playing God," 5 Jan. 2018 The divine plan, as seen on TV, is a world in which God designs fiendish plot arcs to eviscerate us all. — Noah Berlatsky, Washington Post, "TV is showing us the dark side of playing God," 5 Jan. 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fiendish.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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More Definitions for fiendish
fiendish
adjective
English Language Learners Definition of fiendish
: very evil or cruel
: extremely bad, unpleasant, or difficult
See the full definition for fiendish in the English Language Learners Dictionary
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