Antonyms for the word "untrained" are words that describe individuals who have acquired a skill or knowledge through training, education, or experience. Examples of antonyms for "untrained" include trained, skilled, educated, experienced, proficient, and practiced. A trained individual is one who has undergone formal or informal education or on-the-job training, resulting in a level of proficiency in a particular field. A skilled person has a natural ability to perform a task with precision and accuracy. Experienced individuals have acquired practical knowledge by doing something repeatedly. A proficient person is an expert in a particular field, and a practiced individual has honed their skills through regular practice. These antonyms for "untrained" express the opposite of being unskilled, and suggest individuals who are knowledgeable and adept in a particular field.