1
as in intense
extreme in degree, power, or effect
the hellacious heat was more than we could bear
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in difficult
requiring considerable physical or mental effort
the pioneers survived a particularly hellacious river crossing with their covered wagon barely in one piece
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of hellacious
Scott’s hellacious run in hip-hop can be credited to his 100-plus Billboard Hot 100 entries and two blockbuster releases, 2018’s Astroworld and 2023’s Utopia, which both secured the top spot on the Billboard 200.
—
Carl Lamarre, Billboard, 3 Sep. 2019
The canine snarl and hellacious production of Whole Lotta Red has dissipated for something sleeker, more vaporous.
—Olivier Lafontant, Pitchfork, 8 Jan. 2025
Caruso isn't the only reason why the Thunder boast such a hellacious defense this year, but he's been a major contributor to it.
—Bryan Toporek, Forbes, 24 Dec. 2024
Johnny Robles destroyed James Settle in just 20 seconds with a hellacious right cross.
—Brian Mazique, Forbes, 14 Dec. 2024
See All Example Sentences for hellacious
Carl Lamarre, Billboard, 3 Sep. 2019
The canine snarl and hellacious production of Whole Lotta Red has dissipated for something sleeker, more vaporous.
—Olivier Lafontant, Pitchfork, 8 Jan. 2025
Caruso isn't the only reason why the Thunder boast such a hellacious defense this year, but he's been a major contributor to it.
—Bryan Toporek, Forbes, 24 Dec. 2024
Johnny Robles destroyed James Settle in just 20 seconds with a hellacious right cross.
—Brian Mazique, Forbes, 14 Dec. 2024
See All Example Sentences for hellacious
Recent Examples of Synonyms for hellacious
Adjective
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Moster has long been a target of intense scorn in the Orthodox world.—
Asaf Elia-Shalev,
Sun Sentinel,
24 June 2025
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Beijing is also working to draw Europe closer as the continent faces intense pressure from Washington; for example, China has lifted sanctions on members of the European Parliament and dangled other concessions ahead of an EU-Chinese summit scheduled for July 2025.—
Oriana Skylar Mastro,
Foreign Affairs,
24 June 2025
Adjective
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This moderately difficult, half-mile trail through the Mission Hills Open Space, is located across from Pioneer Park.—
Maura Fox,
San Diego Union-Tribune,
23 June 2025
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Following the loss of their family home, the couple was surrounded by the love and support of friends and family who stepped up to help them during this difficult time.—
Clea Haran,
Parents,
23 June 2025
Adjective
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Meta is also making major investments in geothermal technology as a less fossil fuel–intensive way to generate power.—
Mack DeGeurin,
Popular Science,
19 June 2025
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Apex scavengers are disproportionately affected by activities like intensive livestock production, land use changes and the wildlife trade.—
Sarah Kuta,
Smithsonian Magazine,
18 June 2025
Adjective
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All of these factors combine to make AI adoption incredibly challenging, expensive and time-consuming.—
Dave Friend,
Forbes.com,
27 June 2025
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As such, piloting an FPV drone is a completely different, entirely more challenging kettle of fish than piloting a standard camera drone.—
Sam Kieldsen,
Wired News,
27 June 2025
Adjective
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The Supreme Court cases that set off the fiercest conflicts among the justices aren’t always the hot-button ones.—
Dan McLaughlin,
National Review,
25 June 2025
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The land is torn apart by fierce rivals, shifting loyalties and bloody betrayals.—
Selome Hailu,
Variety,
24 June 2025
Adjective
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Even these young players already have major tournament experience — a huge strength given their tough group.—
Megan Feringa,
New York Times,
28 June 2025
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Stark disparities in job opportunities available overall compared to the 25 major contractors may indicate these companies are starting to make tough decisions following DOGE cuts, according to Cory Stahle, the report’s author and economist at the Hiring Lab.—
Sasha Rogelberg,
Fortune,
27 June 2025
Adjective
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The Manchester City striker is one of the global game’s most ferocious and intelligent goalscorers.—
Megan Feringa,
New York Times,
28 June 2025
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Now, she’s added another competitive event to her list of favorites: F1, or Formula 1, largely considered the world's most ferocious and high-tech form of auto racing.—
Marco della Cava,
USA Today,
26 June 2025
Adjective
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She’s also developed a rigorous skincare routine because her treatments leave her with chemotherapy rash.—
Jillian Frankel,
People.com,
27 June 2025
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Every checking account review is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of banking products.—
Mia Taylor,
CNBC,
27 June 2025
Cite this Entry
“Hellacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hellacious. Accessed 4 Jul. 2025.
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