1
as in demonic
of, relating to, or worthy of an evil spirit
a fiendish delight in playing cruel tricks
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2
as in brutal
having or showing the desire to inflict severe pain and suffering on others
shook with fiendish laughter as he watched his victims writhe in agony
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Recent Examples of fiendish
What to know about Blue Origin after celebrity spaceflight NASA's Perseverance rover captures 'fiendish' dueling dust devils on Mars: See video
What causes the Lyrid meteors?
—
Eric Lagatta, USA Today, 19 Apr. 2025
The red Indian of the Western plains tied his prisoner to the stake, tortured him, and danced in fiendish glee while his victim writhed in the flames.
—Liz Tracey, JSTOR Daily, 21 Feb. 2025
Jumbo brings a humanizing clarity to Lady Macbeth without in the least compromising her character’s fiendish side.
—Charles McNulty, Los Angeles Times, 19 Feb. 2025
There's a little bit for every guy, girl and ghoul, no matter what your fiendish tastes.
—Brian Truitt, USA TODAY, 3 Oct. 2024
See All Example Sentences for fiendish
Eric Lagatta, USA Today, 19 Apr. 2025
The red Indian of the Western plains tied his prisoner to the stake, tortured him, and danced in fiendish glee while his victim writhed in the flames.
—Liz Tracey, JSTOR Daily, 21 Feb. 2025
Jumbo brings a humanizing clarity to Lady Macbeth without in the least compromising her character’s fiendish side.
—Charles McNulty, Los Angeles Times, 19 Feb. 2025
There's a little bit for every guy, girl and ghoul, no matter what your fiendish tastes.
—Brian Truitt, USA TODAY, 3 Oct. 2024
See All Example Sentences for fiendish
Recent Examples of Synonyms for fiendish
Adjective
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Lorraine is haunted by a demonic presence during labor and when the time comes, Judy is stillborn, but the baby miraculously returns to life after Lorraine holds her in her arms.—
Dani Di Placido,
Forbes.com,
10 Sep. 2025
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Those elements, particularly the demonic mirror, did not play a role in the actual Smurl case.—
Kevin Dolak,
HollywoodReporter,
10 Sep. 2025
Adjective
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Take the quiz here … KICKED TO THE CURB – Super Bowl hero cut from 49ers roster after brutal Week 1 performance.—
,
FOXNews.com,
11 Sep. 2025
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While released, Horton committed another horrific crime – a brutal home invasion and rape.—
Briah Lumpkins,
Charlotte Observer,
11 Sep. 2025
Adjective
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Whatever, Dever quickly recanted her earlier precise testimony to the FBI about the sinister doings by those two dodgy cops behind Karen Read’s SUV.—
Howie Carr,
Boston Herald,
13 Sep. 2025
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The Haunted Carwash was the sinister concoction of spooky enthusiasts Long Vo and Veronica Young of Huntington Beach.—
Charlie Vargas,
Oc Register,
12 Sep. 2025
Adjective
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The cruel irony is that the very systems designed to promote inclusion can inadvertently reinforce exclusion.—
Cornelia C. Walther,
Forbes.com,
14 Sep. 2025
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And of course, to serve as cruel juxtaposition, deGrom retired the Mets in order in the bottom of the inning on just six pitches.—
Tim Britton,
New York Times,
13 Sep. 2025
Adjective
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As and when evidence against that narrative comes out, either via six monthly reports or from some other source, the crash in the stock price will be more vicious than otherwise.—
Shivaram Rajgopal,
Forbes.com,
15 Sep. 2025
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In these homes, the conflict between budgeting and feeding kids well creates huge psychological stress for parents, which can lead to anxiety and depression, fueling the vicious cycle of stress and unhealthy eating, Beresin said.—
Yasmin Tayag,
The Atlantic,
14 Sep. 2025
Adjective
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This thrilling prequel stars Anya Taylor-Joy as Furiosa and Alyla Browne as young Furiosa, who is abducted by the savage warlord Dementus (Chris Hemsworth) — leader of the Biker Horde — and spends the next decade in captivity plotting her revenge and escape.—
Charlotte Walsh,
People.com,
1 Sep. 2025
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There was a time when loving someone of the wrong gender could result in harassment, arrest or a savage beating.—
Orlando Sentinel Editorial Board,
The Orlando Sentinel,
21 Aug. 2025
Adjective
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Greens are guarded with some diabolical sand traps, and the usually whipping wind forces you to plot every shot.—
Moira McCarthy,
Boston Herald,
11 Sep. 2025
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One of the most diabolical moments ever devised by Horne and the Taskmaster writers, this one’s got it all, from James Acaster absolutely losing his mind to Rhod Gilbert taking it all out on Horne through a simple reinterpretation of the task instructions.—
Matthew Jackson,
Vulture,
11 Sep. 2025
Adjective
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Tracey recalls how her ruthless daughter sought revenge on her father, classmates and Laura.—
Erin Jensen,
USA Today,
12 Sep. 2025
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In the epic Emperor Kisra (Kingsley) has a reputation for being utterly ruthless.—
Nick Vivarelli,
Variety,
12 Sep. 2025
Cite this Entry
“Fiendish.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/fiendish. Accessed 18 Sep. 2025.
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