The divers explored the underwater cave.

I felt uneasy about the upcoming exam.

The decision was unfair to all the participants.

The view from the top of the mountain was unforgettable.

Unfortunately, I missed the bus.

She felt unhappy after receiving the bad news.

Eating fast food every day is unhealthy.

All students must wear a uniform to school.

They were all dressed in uniforms.

The color of the walls is unimportant in this room.