Definition of hellacious in English:

hellacious

adjective

North American informal
  • Very great, bad, or overwhelming.

    ‘there was this hellacious hailstorm’
    • ‘To the contrary, investment by multinational corporations can help alleviate the hellacious environmental conditions from which poor nations suffer.’
    • ‘We book ourselves out every November so we have time to relax after a hellacious summer schedule and so we can enjoy the coming holiday season starting with Thanksgiving.’
    • ‘All I know is that my wife asked me to do something, because she hasn't had a good night sleep since 2000, and she has a hellacious trial coming up.’
    • ‘Which of these hellacious alternatives is less hellacious?’
    • ‘The Victorian Era was hellacious for women in a lot of respects.’
    • ‘Chiefly it was a reaction to a hellacious amount of travel I had to do in the preceding three months.’
    • ‘Music is used nicely, especially the climatic, tense tunes that play during frightening and tense battles against hellacious adversaries.’
    • ‘Like I said, this is going to be one hellacious ride!’
    • ‘I'm sure they had hellacious high hopes for him, but it just didn't work out.’
    • ‘Worse, Internal Affairs blames the entire situation on possible mental problems (she suffered a hellacious childhood) and she has been placed on psychological leave.’
    • ‘If it was summer, the doors would be thrown open against the hellacious interior heat, and these guys would stop at the doorway and peer in, suddenly hesitant, wondering if maybe this was such a good idea after all.’
    • ‘Because of some hellacious traffic, it had taken about forty minutes to reach the Ramada Plaza in downtown San Francisco, where Coach informed us we would be staying the night.’
    • ‘This moment was more excruciating than the hellacious interview session he'd endured with his producers, and that was certainly saying something.’
    • ‘It looks to top out at around $120 - $130 million in spite of hellacious competition.’
    • ‘Here is a man who places his passionate, hellacious inner torment on the screen for all to experience, for everyone to become involved and possessed by.’
    • ‘The driving was hellacious on those traffic-choked streets, but my uncle always gave us a bonus for the extra hassle, so it wasn't all bad.’
    • ‘But the hellacious part is, it's the best way that anyone's found to do it.’
    • ‘Among her eye-popping attributes was a hellacious set of hamstrings.’
    • ‘Loving dads who go through a divorce often face a hellacious struggle trying to stay involved in their kids' lives.’
    • ‘Recently I found myself in the midst of a hellacious project while at work.’
    nasty, disgusting, very unpleasant, awful, dreadful, ghastly, horrid, horrible, vile, foul, abominable, frightful, loathsome, revolting, repulsive, odious, sickening, nauseating, nauseous, repellent, repugnant, horrendous, hideous, appalling, offensive, objectionable, obnoxious

Origin

1930s from hell+ -acious, perhaps suggested by bodacious.

Pronunciation

hellacious

/hɛˈleɪʃəs/