Here are some other words that mean "to make confused or less clear":
* To obscure: To hide or cover something so it's not easily seen or understood.
* To cloud: To make something unclear or difficult to understand.
* To muddle: To mix up or confuse.
* To bewilder: To make someone feel confused and lost.
* To mystify: To make something difficult to understand or explain.
* To jumble: To mix things up in a confused way.
* To garble: To distort or make something unclear.
The best word to use depends on the specific context.