Simple Definition of hellish
: very bad, unpleasant, or shocking
Full Definition of hellish
: of, resembling, or befitting hell; broadly : terrible
Examples of hellish
We've been having hellish weather lately.
The battlefield was a hellish scene of death and destruction.
First Known Use of hellish
Rhymes with hellish
Seen and Heard
What made you want to look up hellish? Please tell us where you read or heard it (including the quote, if possible).