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
There were several hellacious spots, but the final blow was a concerto from Priest.
—
Brian Mazique, Forbes.com, 25 May 2025
After a solid start, his defensive flaws and diminished reflexes left him open for a hellacious left hook from Rodriguez.
—Brian Mazique, Forbes.com, 4 May 2025
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
See All Example Sentences for hellacious
Brian Mazique, Forbes.com, 25 May 2025
After a solid start, his defensive flaws and diminished reflexes left him open for a hellacious left hook from Rodriguez.
—Brian Mazique, Forbes.com, 4 May 2025
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
See All Example Sentences for hellacious
Recent Examples of Synonyms for hellacious
Adjective
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The community’s response is intense: panicked and bereaved mothers and fathers turn on Justine, indirectly a victim herself; misguided outrage blinds them to the real menace operating unimpeded in their midst.—
Andy Crump,
Time,
9 Aug. 2025
-
For Democrats, the internal pressure is even more intense.—
Samantha-Jo Roth,
The Washington Examiner,
8 Aug. 2025
Adjective
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Palace’s recruitment strategy depends on selling players, however difficult such deals are to stomach.—
Matt Woosnam,
New York Times,
22 Aug. 2025
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Chapa said at the news conference that making a final decision was difficult.—
Harriet Ramos,
Fort Worth Star-Telegram,
22 Aug. 2025
Adjective
-
Residents learn to care for critically ill patients, a process that demands intensive hours, extensive study outside of work to prepare for cases, and the emotional resilience to confront life-and-death situations daily.—
Richard Menger MD MPA,
Forbes.com,
18 Aug. 2025
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Musicians are also drawn here; the historic Sewanee Summer Music Festival, a month-long training intensive, stages concerts each summer, and the University Choir performs every Sunday at All Saints’ Chapel during the academic year.—
Lydia Mansel,
Travel + Leisure,
15 Aug. 2025
Adjective
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Taking the most challenging courses available — like AP, IB, honors, or dual enrollment classes — signals preparedness for college-level work.—
Liz Doe Stone,
Forbes.com,
14 Aug. 2025
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Because of this consistent advocacy, the Mayor selected me to help lead efforts to move Council forward through this challenging time.—
Nick Sullivan,
Charlotte Observer,
13 Aug. 2025
Adjective
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Nonetheless, the show’s premiere provides the perfect moment to map out the slimy, menacing world of Ellen Ripley and company in their epic battle against one of the galaxy’s fiercest creatures.—
Dan Heching,
CNN Money,
12 Aug. 2025
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On a subsequent rally, Kaylee smacked a fierce shot past me, scoring her team a point.—
Dhruv Khullar,
New Yorker,
11 Aug. 2025
Adjective
-
Unlike Trump, they aren’t charmed by the Kremlin’s tough guy.—
New York Daily News Editorial Board,
New York Daily News,
14 Aug. 2025
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Sanctions have roiled Russia's economy and Trump could use tougher measures as leverage over Putin, said Richard Portes, professor of economics at London Business School.—
Brendan Cole,
MSNBC Newsweek,
14 Aug. 2025
Adjective
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Typical confusion and disruption for a ferocious Vikings unit led by blitz enthusiast and defensive coordinator Brian Flores, but a shock to the Patriots’ offensive system.—
Andrew Callahan,
Boston Herald,
13 Aug. 2025
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Aquaman star Jason Momoa learned that lesson the hard way while attempting a miles-long paddle through ferocious Hawaiian waters and nearly not coming back up.—
Ryan Coleman Published,
EW.com,
12 Aug. 2025
Adjective
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While the certification was not specifically a result of litigation, pursuing rigorous, third-party validation of AI practices is increasingly viewed as an industry best practice.—
Marc Blythe,
Forbes.com,
15 Aug. 2025
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Every insurance article is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of insurance products.—
Liz Knueven,
CNBC,
15 Aug. 2025
Cite this Entry
“Hellacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hellacious. Accessed 25 Aug. 2025.
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