The word "bemused" is an adjective.

Yesterday, while seeing a cliffhanger movie, I was bemused as I was not able to decipher the end of the story which was so abrupt.

The candidate seemed bemused by all the questions, but he kept a smile on his face.

The old man bemused me with his babbling.

I watched in anger at his bemused expression at my problem.

I was bemused by the crowd's laughter

LIKE

Not really. Bemused means to find something to smile about. She was bemused by the dog trying and trying but failing to reach the turkey on the counter. Befuddled means having trouble figuring out something. He was befuddled with some words on the day's crossword puzzle.