hellacious

hel·la·cious
H4E1L1L1A1C3I1O1U1S1
/hɛˈleɪʃəs/

adjective

horrible, awful, hellish, agonizing, difficult.

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Meanings

adjectivehellacious (comparative more hellacious, superlative most hellacious)

comparative more hellacious · superlative most hellacious · alternative helatious

  1. horrible, awful, hellish, agonizing, difficult.

    Because he throws so many hellacious punches, he has the chance of knocking out any fighter on any given night.

    2007, Dan Horgan, Bringing Back Boxing: A Young Journalist's Attempt to Revive the Sweet Science, page 86
  2. nasty, repellent.
  3. slangRemarkable, unbelievable, unusual.

Origin

Unclear origins; perhaps from hell + -acious

Full word history & related roots →

Rhymes & wordplay

Rhymes with hellacious

spacioustenaciousgraciousgaseouscretaceousherbaceousaudaciousefficaciousvoraciousvivaciousfallaciouscarbonaceoussebaceousvexatiousflirtatiouscurvaceousostentatioussalaciousrapaciouscapacioussagaciouspugnaciousloquaciousmendacious
All rhymes →
Cite this entry
APA

hellacious. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hellacious

MLA

“hellacious.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hellacious. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “hellacious,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hellacious.

Source: hellacious on Wiktionary, CC BY-SA 4.0.