Definition of hellacious
1 : exceptionally powerful or violent
2 : remarkably good
3 : extremely difficult
4 : extraordinarily large
Examples of hellacious in a sentence
Traffic is hellacious this time of day.
<the hellacious heat was more than we could bear>
Origin and Etymology of hellacious
hell + -acious (as in audacious)
First Known Use: 1929
HELLACIOUS Defined for English Language Learners
Definition of hellacious for English Language Learners
: very difficult, large, or powerful
Seen and Heard
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