When asked to describe your emotions, reactions, or feelings, it can be confusing figuring out which form of the adjective to use with adjectives that have both -ed and -ing ending. Here's the rule:
If the adjective ends in -ed, you are describing how you feel about the object or person.
I was excited after watching the movie! I'm sorry I attended the meeting. I was bored the entire time. My son is terrified of riding roller coasters.
If the adjective ends in -ing, you are describing the object or person.
That movie was exciting! Be glad you didn't attend the meeting. It was boring. Our department head thinks the CEO is terrifying.
Other '-ed'/'-ing' combinations: