The word "awful" has a negative connotation and means something that is extremely bad, unpleasant or unwanted. It can be used to describe something that causes disgust, horror or shock, such as an awful smell, an awful taste, or an awful experience.
Usage examples
The food at the restaurant was awful - it was overcooked, tasteless, and completely unappetizing.
I had an awful day at work - my boss yelled at me, my computer crashed, and I made several mistakes.
The movie was awful - the acting was terrible, the plot was confusing, and the special effects were laughably bad.
I had an awful experience with customer service - the representative was rude, unhelpful, and didn't resolve my issue.
The weather was awful during our vacation - it rained every day, was freezing cold, and we couldn't enjoy any outdoor activities.
I had an awful headache - it was pounding, lasted for hours, and made it impossible for me to concentrate on anything.