1
as in intense
extreme in degree, power, or effect
the hellacious heat was more than we could bear
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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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Recent Examples of hellacious
Johnny Robles destroyed James Settle in just 20 seconds with a hellacious right cross.
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Brian Mazique, Forbes, 14 Dec. 2024
One night after a hellacious WarGames match, Iyo Sky was made to compete in a tag team match against Liv Morgan and Raquel Rodriguez.
—Alfred Konuwa, Forbes, 2 Dec. 2024
Shai Gilgeous-Alexander up top and the hellacious Dillon Brooks (Houston Rockets) and Lu Dort (Thunder) on the wings.
—Sam Amick, The Athletic, 3 Aug. 2024
That run of bonuses includes a Fight of the Night bonus for his part in a hellacious scrap with David Onama in August 2022.
—Brian Mazique, Forbes, 5 Nov. 2024
See all Example Sentences for hellacious 
Brian Mazique, Forbes, 14 Dec. 2024
One night after a hellacious WarGames match, Iyo Sky was made to compete in a tag team match against Liv Morgan and Raquel Rodriguez.
—Alfred Konuwa, Forbes, 2 Dec. 2024
Shai Gilgeous-Alexander up top and the hellacious Dillon Brooks (Houston Rockets) and Lu Dort (Thunder) on the wings.
—Sam Amick, The Athletic, 3 Aug. 2024
That run of bonuses includes a Fight of the Night bonus for his part in a hellacious scrap with David Onama in August 2022.
—Brian Mazique, Forbes, 5 Nov. 2024
See all Example Sentences for hellacious
Recent Examples of Synonyms for hellacious
Adjective
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In 2021, a storm killed over 240 people and left millions of residents without power sparking intense backlash for ERCOT.Kevin Lynn, Newsweek, 8 Jan. 2025
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Flames were pushed by intense wind gusts that officials had warned could fuel any spark into a fast-moving and erratic wildfire.Alexandra Del Rosario, Los Angeles Times, 8 Jan. 2025
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Despite his success, Axiom’s presence in WWE is remarkable, as professional wrestling remains niche in Spain and has been difficult to find on TV.Jamie Lang, Variety, 6 Jan. 2025
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He’s got some difficult questions to answer but the team has had five weeks to prepare for this moment.Brad Biggs, Chicago Tribune, 6 Jan. 2025
Adjective
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Although Altman didn’t explicitly say why the company is losing money, running AI models is very cost intensive, requiring investments in data centers and electricity to provide the necessary computing power.Tharin Pillay, TIME, 8 Jan. 2025
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At present, nitrogen fixation—the chemical process required to produce ammonia from nitrogen gas—is hugely energy intensive, accounting for as much as two percent of the world’s annual energy budget.Charina Chou, Foreign Affairs, 7 Jan. 2025
Adjective
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Finding a way to relax and take your mind off football can be challenging, but Colwill uses Lego to unwind.The Athletic UK Staff, The Athletic, 10 Jan. 2025
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That realization reinforced for me the importance of breaking stereotypes about introverts and challenging misconceptions.Kendra MacDonald, Forbes, 10 Jan. 2025
Adjective
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Lyft’s challenges were compounded by fierce rivalry with Uber (NYSE: UBER) and the disruptive impact of the pandemic.Trefis Team, Forbes, 8 Jan. 2025
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Tariffs Don't Have to Make Economic Sense to Appeal to Trump Voters The debates over tariffs were fierce.Einav Rabinovitch-Fox / Made by History, TIME, 7 Jan. 2025
Adjective
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Households are currently seeing significant reductions in their monthly electricity usage, resulting in cost savings—a big relief, especially in tough economic times.Chris Gallagher, USA TODAY, 10 Jan. 2025
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Reporting Highlights Child Care Gap: About 70% of rural Illinoisans live in a child care desert, forcing tough choices on parents: Some drive 100 miles a day or more to find care, others leave the workforce.ProPublica, ProPublica, 10 Jan. 2025
Adjective
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More than 12,000 homes have been destroyed by ferocious fires that have left at least 11 dead.Chantz Martin, Fox News, 12 Jan. 2025
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Those howling winds, measured at speeds approaching 100 mph, fueled the ferocious firestorms that followed.Doyle Rice, USA TODAY, 11 Jan. 2025
Adjective
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The Kings hadn’t played since their double-overtime win over the Miami Heat on Monday, leaving three days between games, which likely would have meant at least one rigorous practice with Brown at the helm.Chris Biderman, Sacramento Bee, 11 Jan. 2025
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Truth, in this sense, is sought and rendered, something produced by rigorous inquiry and informed consideration rather than something discovered.Fergus McIntosh, The New Yorker, 11 Jan. 2025
Thesaurus Entries Near hellacious
Cite this Entry
“Hellacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hellacious. Accessed 20 Jan. 2025.
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