hellacious: Meaning and Definition of
hel•la•cious
Pronunciation: (he-lā'shus), [key]
— adj. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.