Dictionary.com

hellacious

or hel·la·ceous

[ he-ley-shuhs ]
/ hɛˈleɪ ʃəs /
Save This Word!

adjective Slang.
remarkable; astonishing: They're raising a hellacious amount of money in taxes.
formidably difficult: We had a hellacious time getting here in the blizzard.
QUIZ
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

Origin of hellacious

hell + -acious (extracted from audacious, sagacious, vivacious, etc.), perhaps with intensive or augmentative force; cf. bodacious, splendacious
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use hellacious in a sentence

British Dictionary definitions for hellacious

hellacious
/ (hɛˈleɪʃəs) /

adjective US slang
remarkable; horrifying
wonderful; excellent

Word Origin for hellacious

C20: from hell + -acious as in audacious
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK