hellacious

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/hɛˈleɪʃəs/US:USA pronunciation: respellingUSA pronunciation: respelling(he lā′shəs)


WordReference Random House Unabridged Dictionary of American English © 2025
hel•la•cious  (he lā′shəs),USA pronunciation adj. [Slang.]
  1. Slang Termsremarkable;
    astonishing:They're raising a hellacious amount of money in taxes.
  2. Slang Termsformidably difficult:We had a hellacious time getting here in the blizzard.
Also, hel•la′ceous. 
  • compare bodacious, splendacious hell + -acious (extracted from audacious, sagacious, vivacious, etc.), perh. with intensive or augmentative force

Collins Concise English Dictionary © HarperCollins Publishers::
hellacious / hɛˈleɪʃəs/
  1. remarkable; horrifying
  2. wonderful; excellent
Etymology: 20th Century: from hell + -acious as in audacioushellˈaciously

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