1
: perversely diabolical
took a fiendish pleasure in hurting people
2
: extremely cruel or wicked
3
: excessively bad, unpleasant, or difficult
fiendish weather
fiendishly
adverb
fiendishness
noun
Synonyms
Examples of fiendish in a Sentence
He takes a fiendish delight in hurting people.
a fiendish delight in playing cruel tricks
Recent Examples on the Web
But commercializing nuclear fusion still remains a long way off as scientists work to solve fiendish engineering and scientific difficulties.
—
Laura Paddison, CNN, 1 Apr. 2024
In the 1940s, the deviled egg was a cocktail party staple and today the fiendish eggs are still a potluck favorite.
—Sarah Mosqueda, Los Angeles Times, 28 Mar. 2024
The great-grandfathers could be said to resemble fiendish claves.
—Jay Pilgreen, Kansas City Star, 12 Feb. 2024
At least the miscreant is sentenced to return to his original trajectory as a particularly fiendish version of the death penalty.
—Jennifer Ouellette and Sean M. Carroll, Ars Technica, 24 Nov. 2023
The immersive and interactive experience transforms the Nature Gardens into a frightening adventure filled with singing plants, fiendish animals, a skeleton orchestra, prehistoric creatures and magical performances.
—Steven Vargas, Los Angeles Times, 11 Oct. 2023
Lambert also recommends a few fiendish touches in the guest bathroom.
—Sarah Wolf Halverson, Better Homes & Gardens, 12 Sep. 2023
The writer of this fiendish plot was (surprise surprise) a puzzle expert.
—Kenna Hughes-Castleberry, Scientific American, 21 Apr. 2023
Whether navigating solo or partnering up with seven other friends, the game promises a plethora of fiendish puzzles to decipher and conquer.
—Callum McLennan, Variety, 17 Aug. 2023
Laura Paddison, CNN, 1 Apr. 2024
In the 1940s, the deviled egg was a cocktail party staple and today the fiendish eggs are still a potluck favorite.
—Sarah Mosqueda, Los Angeles Times, 28 Mar. 2024
The great-grandfathers could be said to resemble fiendish claves.
—Jay Pilgreen, Kansas City Star, 12 Feb. 2024
At least the miscreant is sentenced to return to his original trajectory as a particularly fiendish version of the death penalty.
—Jennifer Ouellette and Sean M. Carroll, Ars Technica, 24 Nov. 2023
The immersive and interactive experience transforms the Nature Gardens into a frightening adventure filled with singing plants, fiendish animals, a skeleton orchestra, prehistoric creatures and magical performances.
—Steven Vargas, Los Angeles Times, 11 Oct. 2023
Lambert also recommends a few fiendish touches in the guest bathroom.
—Sarah Wolf Halverson, Better Homes & Gardens, 12 Sep. 2023
The writer of this fiendish plot was (surprise surprise) a puzzle expert.
—Kenna Hughes-Castleberry, Scientific American, 21 Apr. 2023
Whether navigating solo or partnering up with seven other friends, the game promises a plethora of fiendish puzzles to decipher and conquer.
—Callum McLennan, Variety, 17 Aug. 2023
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fiendish.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near fiendish
Cite this Entry
“Fiendish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiendish. Accessed 24 Apr. 2024.
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