"Am skillful" is a declaration of proficiency and expertise in a specific field or activity. Antonyms for "am skillful" could include "amateur," which suggests a lack of proficiency, or "incompetent," which implies an inability to perform at a level of proficiency. Other antonyms for "am skillful" may be "inept," "clumsy," "unskilled," or "untrained." These terms all convey a sense of inadequacy or lack of proficiency. When communicating one's level of skill or expertise, it is important to choose the appropriate language that accurately conveys the intended message.