fearful [ feer-fuhl ]
causing or apt to cause fear; frightening: a fearful apparition.
feeling fear, dread, apprehension, or solicitude: fearful for his life.
full of awe or reverence: fearful of the Lord.
showing or caused by fear: fearful behavior exhibited by dogs in the animal shelter.
extreme in size, intensity, or badness: a fearful head cold; fearful poverty.dictionary.com
The word fearful is neat because it can change slightly depending upon context. Though it’s a more formal sounding word, it’s also a word that can be used across genres and writing styles.
Write a story/scene using the word fearful in a way you’ve never used before. Examine the different definitions and try to describe what is fearful about whatever is happening in the scene according to the particular definition.