-ed vs -ing Adjectives

What do -ed and -ing adjectives mean?

-ed and -ing adjectives often come from the same verb, but they describe different sides of a reaction. Use -ed adjectives for the person or animal that feels something. Use -ing adjectives for the thing, event, situation, or person that causes the feeling.

-ed = feeling receiver

The student was bored.

The student feels the reaction.

-ing = feeling cause

The book was boring.

The book causes the reaction.

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How do you choose between bored and boring?

Ask who has the feeling. If a person feels uninterested, use bored. If something causes that feeling, use boring. This same test works for interested/interesting, excited/exciting, confused/confusing, surprised/surprising, and many other pairs.

Can people be interesting, boring, or annoying?

Yes. People can take -ing adjectives when they cause a reaction in other people. A guide can be interesting, a speaker can be boring, and a neighbour can be annoying. People take -ed adjectives when they receive the feeling.

The speaker was interesting.

The speaker caused the audience to feel interested.

The audience was interested.

The audience received the feeling.

Why is "I am boring" a common mistake?

"I am bored" means you feel uninterested. "I am boring" means you make other people feel uninterested. Both sentences are grammatical, but they do not mean the same thing. This is why the ending matters so much.

Which -ed adjectives use prepositions?

Many -ed adjectives are followed by common prepositions. These prepositions connect the feeling to its topic or cause: interested in a subject, excited about a trip, bored with a routine, frightened of spiders, disappointed with a result.

What are the most common -ed and -ing adjective mistakes?

The most common mistakes are using -ing for your own feeling, using -ed for a thing that causes a feeling, and following the false rule that people always take -ed. The real rule is meaning-based: receiver or cause.

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How should learners choose quickly in an exercise?

Read the whole sentence before answering. Find the noun the adjective describes, then ask whether that noun feels the emotion or causes the emotion. If it feels the reaction, choose -ed. If it creates the reaction, choose -ing.

Major learner grammar references teach this contrast early because it appears in everyday descriptions of films, books, classes, travel, work, news, and personal reactions. British Council places the basic contrast at A1-A2, while broader participial adjective use continues into B1 and B2 work.