Expertisms refer to the characteristics, judgments, or actions of someone who is an expert in a particular field. Some antonyms for expertisms may include amateurism, unprofessionalism, or inadequacy. Amateurism refers to people who are not skilled or experienced in a specific area; they often lack formal training or qualifications. Unprofessionalism suggests a lack of professionalism, ethics, or reliability in one's work or behavior. Lastly, inadequacy refers to a lack of knowledge, proficiency, or resources to accomplish a task or handle a situation. While expertisms are desirable in many professional settings, it is essential to recognize these antonyms as a way to identify where improvement is needed.