Hellacious (adjective)

Extremely bad, unpleasant, or severe.

Origin:

The word hellacious is likely derived from the word "hell", which means extremely bad or unpleasant and "-acious" which is a suffix that means characterized by or tending to.

Examples:

1. The storm was hellacious with high winds and heavy rain.
2. It was a hellacious accident that caused major damage to the cars.
3. The pain in my back was hellacious and I had trouble sleeping.
4. The traffic was hellacious and it took hours to get home.
5. The exam was hellacious and I barely passed.