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
The skiers were in a valley below Perry Peak, but the two survivors have described battling through hellacious conditions in the hour before the avalanche.
—
Andrew Graham
april 2,
Sacbee.com,
2 Apr. 2026
But the tour was a hellacious time for Bachman.
—
Andy Greene,
Rolling Stone,
28 Feb. 2026
Edmonton superstar Connor McDavid dished out three assists and a hellacious hit on Czechia forward Lukas Sedlec on his first shift early in the first period that set the tone for a fast paced, hard hitting and unselfish display of often breathtaking hockey.
—
Scott M. Reid,
Oc Register,
13 Feb. 2026
Even against a hellacious Houston defense, the Patriots’ shortest path to victory is to ask Maye to carry them yet again.
—
Andrew Callahan,
Boston Herald,
15 Jan. 2026
See All Example Sentences for hellacious
Andrew Graham
april 2,
Sacbee.com,
2 Apr. 2026
But the tour was a hellacious time for Bachman.
—
Andy Greene,
Rolling Stone,
28 Feb. 2026
Edmonton superstar Connor McDavid dished out three assists and a hellacious hit on Czechia forward Lukas Sedlec on his first shift early in the first period that set the tone for a fast paced, hard hitting and unselfish display of often breathtaking hockey.
—
Scott M. Reid,
Oc Register,
13 Feb. 2026
Even against a hellacious Houston defense, the Patriots’ shortest path to victory is to ask Maye to carry them yet again.
—
Andrew Callahan,
Boston Herald,
15 Jan. 2026
See All Example Sentences for hellacious
Recent Examples of Synonyms for hellacious
Adjective
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Katherine Guaramaco described the experience as one of the most intense of her life.
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The president highlighted the military operation in Iran that has proven deeply unpopular, and an immigration agenda that has provoked intense backlash.
Adjective
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Some organizers say America's complicated and at times difficult history is being glossed over by fireworks and flag-waving ‒ or that it's being politicized by an administration that has actively worked to advance its version of history.
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The move gives Marte another chance to work his way back to the major leagues after a difficult stretch that included a brief stop with the Cincinnati Reds organization earlier this year before a cut.
Adjective
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There’s nothing like an invasive hours-long aesthetic procedure with anesthesia to justify intensive pampering.
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Governments and energy-intensive firms will look at electrification with newfound interest.
Adjective
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Keeping your hair looking and feeling shiny can be challenging, but not with this hair kit.
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Los Angeles Fire Department Chief Jaime Moore said that fighting the fire had been extremely challenging.
Adjective
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Despite a few glimmers of good feeling, today's fierce political divisions have redefined a milestone that has often been marked by unity and optimism, at least for a moment.
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An uncontained blaze in Utah’s Juab County has scorched 34 square miles, forcing the evacuation of Eureka and nearby ranches as firefighters race to shield homes amid fierce winds.
Adjective
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McIlroy bogeyed 18 to finish at one under, squarely in the hunt, considering the tough conditions limited scoring.
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Parker, a former Eagles assistant, has risen quickly through the NFL coaching ranks and now faces a tough task with a roster full of new faces and high expectations.
Adjective
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So playing characters who were so ferocious and bold and confident and determined and all that helped me profoundly in my personal life.
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Your ferocious work ethic and absolutely unshakable moral fiber.
Adjective
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This is why getting a high-definition picture of a leader — through rigorous assessment, psychometric profiling, structured reference gathering, and behavioural history — is not an optional extra in the selection process.
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Every gas article is based on rigorous reporting by our team of expert writers and editors with extensive knowledge of personal finance products.
Cite this Entry
“Hellacious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/hellacious. Accessed 25 Jun. 2026.
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