hellacious
adjective
hel·la·cious
ˌhe-ˈlā-shəs 
1
: exceptionally powerful or violent
hellacious winds
2
: remarkably good
has a hellacious curve ball
3
: extremely difficult
a hellacious climb
4
: extraordinarily large
a hellacious traffic jam
hellaciously
adverb
Examples of hellacious in a Sentence
Traffic is hellacious this time of day.
the hellacious heat was more than we could bear
Recent Examples on the Web
This was a hellacious heavyweight matchup that lived up to the hype.
—
Scott Wheeler, New York Times, 10 Apr. 2026
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
The Pistons' defense is hellacious, but their offense is prone to droughts and is not designed to play catchup.
—Bryan Toporek, Forbes.com, 7 Mar. 2026
But the tour was a hellacious time for Bachman.
—Andy Greene, Rolling Stone, 28 Feb. 2026
See All Example Sentences for hellacious
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Scott Wheeler, New York Times, 10 Apr. 2026
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
The Pistons' defense is hellacious, but their offense is prone to droughts and is not designed to play catchup.
—Bryan Toporek, Forbes.com, 7 Mar. 2026
But the tour was a hellacious time for Bachman.
—Andy Greene, Rolling Stone, 28 Feb. 2026
See All Example Sentences for hellacious
Cite this Entry
“Hellacious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hellacious. Accessed 2 May. 2026.
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