frightful

(s) provoking horror
- an atrocious automobile accident
- a frightful crime of decapitation
- an alarming, even horrifying, picture
- "war is beyond all words horrible"- Winston Churchill
- an ugly wound
horrible, horrifying, atrocious, ugly,
(s) extreme in degree or extent or amount or impact
- in a frightful hurry
- spent a frightful amount of money
tremendous, terrible, awful,
(s) extremely distressing
- fearful slum conditions
- a frightful mistake
fearful,

horrible horrifying atrocious ugly tremendous terrible awful fearful

frightfully frightfulness