from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Distasteful and repellant: hellacious smog.
  • adj. Slang Extraordinary; remarkable: a hellacious catch of fish.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. nasty, repellent
  • adj. remarkable, unbelievable, unusual


from The American Heritage® Dictionary of the English Language, 4th Edition

hell + -acious (as in audacious).


  • He takes us back to his youth in "hellacious" Brownsville, Brooklyn of the 1970s, telling us that before he became a street thug, he was the target of neighborhood bullies because he lacked the confidence to stand up for himself.

    Greg Hanlon: HuffPost Review: Tyson

  • Nicole Belle, from who I borrowed the long quote above, asks: "What kind of hellacious Kool-aid are they serving down at the Weekly Standard?"

    Norman Lear: In the Language of Today

  • Miller was his usual forthright self, saying Tiger Woods was "hellacious" Sunday. - NBC uses deft touch on Ryder Cup

  • Besides modeling, she said she'd been writing her autobiography and spending time on her 300-acre Rattlesnake Ranch in the Southwest, where she drives a "hellacious" truck and an "even meaner" Jeep, rides motorcycles and hot-tubs naked.

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  • Francis's flexibility extends to special teams, where Etcheverry noted he's "hellacious" in kick coverage. Top Stories

  • New York state Senate a "hellacious" place, the president of a statewide group warned local hospital leaders they're in for a bumpy ride. - Business News

  • To them, Iraq was some kind of hellacious mess for a while, so pulling our troops was not such a crazy idea.

    Back Talk

  • Although he was deemed a failure as a starter, at his worst Mr. Chamberlain posted numbers better than that, and did it pitching in the hellacious AL East.

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  • The first week of Jerry Brown's governorship told us a lot, and set the stage for the second week, in which a hellacious state budget proposal is dominating.

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  • The real hellacious fight, says Mouw, a friend of Bell, a Fuller graduate, is between generous orthodoxy and stingy orthodoxy.

    'Love Wins': Pastor book kindles firestorm over hell


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  • not quite the same as hellish.

    October 19, 2007

  • very powerful; extremely difficult

    September 12, 2007