If you are contrite, you are very sorry because you have done something wrong.

He looked so contrite, for a minute she believed him.

As the defendant was sentenced, he appeared remorseful and contrite.

After realizing he had done wrong, the convict was contrite and overcome with grief.

The man was contrite after he accidentally spoiled the surprise party for his friend.

The contrite sinner knelt before the altar.

The contrite boy humbly apologized for breaking the window.

Feeling ashamed and contrite, I apologised for treating him so rudely.

The word "contrite" is an adjective. It is used to describe a feeling of deep remorse or guilt.