Schlemiel is a Yiddish word that is commonly used to refer to a clumsy, awkward, or blundering person. However, there are several synonyms that can be used to describe this type of person. Some of the most common synonyms for schlemiel include bungler, stumblebum, nincompoop, goofball, dunderhead, knucklehead, and blockhead. Other synonyms that can be used to describe a schlemiel include buffoon, clown, fool, dolt, and doofus. These words all convey a sense of incompetence or foolishness, and can be used to describe someone who is continually making mistakes or causing problems. Whether you choose to use the word schlemiel or one of its many synonyms, the message remains the same - this is somebody who is not very good at what they do.