Meaning & use
hellacious
Last updated
extremely intense, difficult, or severe, used informally, sometimes to express strong admiration.
See it in a sentence
They fought through a hellacious storm to reach the summit.
It was a hellacious week at work, with deadlines piling up every day.
A note on using this word
Mostly used in informal American English; can describe something impressively bad or, less often, impressively good.
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