-ED adjectives: they generally describe emotions/feelings. It can only be used with people or animals.
Bored Worried
Interested Confused
Excited Frustrated
-ING adjectives: they generally describe the thing that causes the emotion/feeling. It can be used with people, animals, things, situation, places, ideas…
Boring Worrying
Interesting Confusing
Examples:
I’m bored because the film is boring.
I’m interested in learning English and the classes are very interesting.
I’m going to Australia next month. I’m so excited! This trip is going to be very exciting!
My parents are worried because they lost their jobs, and that’s a worrying situation.
My cat is confused. She has a new feeder, which is confusing for her.
I’m quite frustrated because this client is so frustrating!
