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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
fiendishly
adverbfiendishness
nounRead the Latest from M-W
Examples of fiendish in a Sentence
He takes a fiendish delight in hurting people.
a fiendish delight in playing cruel tricks
Recent Examples of fiendish from the Web
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Those of fiendish or mischievous mind will have an easier time registering trademarks after the Supreme Court on Monday decided to reject as unconstitutional a rule against disparaging ones.
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Those of fiendish or mischievous mind will have an easier time registering trademarks after the Supreme Court on Monday decided to reject as unconstitutional a rule against disparaging ones.
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Trump was wise not to try to concoct a phony justification for using the doctrine, which at best would have been a delaying tactic and only increased the already-fiendish interest in the specifics of Comey's testimony.
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These fiendish folks also plied me with snacks and beverages.
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Like painter Ron English, who’s churned out dozens of fiendish variations on the Ronald McDonald mascot, TrustoCorp uses 21st-century brand-name iconography as raw material for its art.
These 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.
First Known Use of fiendish
1529
FIENDISH Defined for English Language Learners
fiendish
playDefinition of fiendish for English Language Learners
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: very evil or cruel
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: extremely bad, unpleasant, or difficult
Learn More about fiendish
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Thesaurus: All synonyms and antonyms for fiendish Spanish Central: Translation of fiendish Nglish: Translation of fiendish for Spanish speakers
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