The word "in-capable" represents the inability to perform or achieve a specific task or activity. However, there are several antonyms for this term that describe the opposite meaning. Competent, capable, efficient, skillful, and proficient are some of the antonyms that indicate the opposite of in-capable. Capable suggests possessing the necessary abilities or qualities to do something. Competent refers to being able to perform something by having adequate knowledge, skills, and abilities. Efficient implies being able to accomplish something in the most effective and productive manner while proficient signifies possessing a remarkable skill or expertise in a particular field. Therefore, utilizing these antonyms can convey a more positive and capable tone in one's speech or writing.