frightful
Frightful (adj) means causing shock, horror, or fear; dreadful. Example: “They witnessed a frightful accident on the motorway.”
How to use frightful
Learner’s notesIn plain EnglishDreadful or shocking, or (in casual British English) simply "terrible/very great".
The intensifying sense ("a frightful mess") is dated and mostly British; younger speakers rarely use it this way.
Word forms
- Comparative
- more frightful
- Superlative
- most frightful
Fill the gap
Can you complete this real example?
They witnessed a _____ accident on the motorway.
Etymology
Built from "fright" plus "-ful" ("full of"), so literally "full of fright" — though today it more often just means "very bad".