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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Example Sentences
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Recent Examples of hellacious
Having a baby is never an easy experience, but the sixth episode of Outlander: Blood of My Blood plunged poor Julia (Hermione Corfield) into a hellacious labor experience.
—
Maureen Lee Lenker, Entertainment Weekly, 6 Sep. 2025
Even in the hellacious conditions of Greater Los Angeles, the suspension absorbs severe potholes, broken surfaces and expansion joints with little more than the sound of a muffled timpani strike.
—Mark Ewing, Forbes.com, 2 Aug. 2025
The other nailed two runners on the bases with some of the most hellacious throws anyone had ever seen.
—Tyler Kepner, New York Times, 11 July 2025
Lineups featuring the trio of Dunn-Jones-Leonard are going to be hellacious.
—Shane Young, Forbes, 13 Dec. 2024
See All Example Sentences for hellacious
Maureen Lee Lenker, Entertainment Weekly, 6 Sep. 2025
Even in the hellacious conditions of Greater Los Angeles, the suspension absorbs severe potholes, broken surfaces and expansion joints with little more than the sound of a muffled timpani strike.
—Mark Ewing, Forbes.com, 2 Aug. 2025
The other nailed two runners on the bases with some of the most hellacious throws anyone had ever seen.
—Tyler Kepner, New York Times, 11 July 2025
Lineups featuring the trio of Dunn-Jones-Leonard are going to be hellacious.
—Shane Young, Forbes, 13 Dec. 2024
See All Example Sentences for hellacious
Recent Examples of Synonyms for hellacious
Adjective
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For the seventh year in a row, Walmart captured more money from Charlotte-area shoppers than any other grocery store, despite intense competition from local grocers like Harris Teeter and Food Lion.—
Charlotte Observer,
Charlotte Observer,
2 Apr. 2026
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Graves’ exit has sparked intense speculation about his potential successor to represent Missouri’s 6th Congressional District, which stretches across northern Missouri and touches Kansas City’s Northland.—
Kacen Bayless,
Kansas City Star,
1 Apr. 2026
Adjective
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Christie acknowledged that the Kings were in a difficult position given their recent schedule injury situation.—
Jason Anderson,
Sacbee.com,
30 Mar. 2026
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Even putting the tank on the ice was more difficult this year.—
Spencer Wilson,
CBS News,
30 Mar. 2026
Adjective
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Xcel Energy is proposing a new rate class for data centers that the company says is intended to ensure that the energy-intensive facilities pay their way instead of passing along the costs to residential and small-business customers.—
Judith Kohler,
Denver Post,
3 Apr. 2026
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In the tech industry, AI models promise to make coding far easier and less labor intensive.—
Bloomberg,
Mercury News,
3 Apr. 2026
Adjective
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Orkin bed bug control Bed bug treatment is challenging, but something that Orkin excels at.—
Alora Bopray,
USA Today,
1 Apr. 2026
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Turning your attention inward can feel challenging.—
J. David Creswell,
The Conversation,
31 Mar. 2026
Adjective
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Nothing except getting into fierce arguments with fellow-Jews, some would say, which Olitzky—who has a round, boyish face and a conciliatory manner—portrayed as a privilege rather than a burden.—
Eyal Press,
New Yorker,
30 Mar. 2026
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With one-of-a-kind offerings from the likes of Inglenook, Crocker & Starr, Amici Cellars, Peju, Long Meadow Ranch, and a collaboration between Dakota Shy and Detert Family Vineyards, bidding was fierce on Cabernet Franc.—
Mike DeSimone,
Robb Report,
29 Mar. 2026
Adjective
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The judge assigned to Amin’s case was Iman Afshari, known in Tehran for his tough sentences—a reputation that led the European Union to place him on a blacklist, in January, for human-rights abuses.—
Cora Engelbrecht,
New Yorker,
3 Apr. 2026
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Two sisters in Big Bear are facing one of the toughest moments in their lives.—
Zach Boetto,
CBS News,
3 Apr. 2026
Adjective
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Italy happens to be in similarly ferocious form, however, and has won seven of its last eight, albeit losing twice in as many encounters with qualifying group winner Norway last year.—
Ben Verbrugge,
MSNBC Newsweek,
31 Mar. 2026
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Despite Iran’s remarkably ferocious response across the region – attacking neighbors like Oman who days earlier mediated between Tehran and Washington - weeks of intense airstrikes against its cities and military has not magically left it a hundred feet tall.—
Nick Paton Walsh,
CNN Money,
27 Mar. 2026
Adjective
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No pharmaceutical company, no academic medical center, and no government agency has found the existing preclinical data compelling enough to fund a rigorous human trial in over 30 years.—
Vikas Patel,
STAT,
3 Apr. 2026
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Every personal finance article is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of personal finance products.—
Layla Melendez,
CNBC,
3 Apr. 2026
Cite this Entry
“Hellacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hellacious. Accessed 5 Apr. 2026.
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