- awful
- dreadful
- fearful
- formidable
- frightful
- scary
- hideous
- horrible
- terrible
- terribly
Generated: inspiring fear or a feeling of dread
This horror movie is really awful.
Generated: causing great dread or fear
Generated: feeling afraid or apprehensive
Generated: inspiring fear or respect through being impressively large, powerful, intense, or capable
Generated: causing fear or terror
That frightful sound startled them.
Generated: causing fear or alarm
Generated: extremely ugly or unpleasant
Generated: extremely unpleasant or unacceptable
Generated: extremely bad or serious
Generated: to a great degree; extremely