The term "un dexterous" refers to a lack of skill, proficiency, or coordination in manual tasks. The antonyms of this word would be "skillful," "expert," "adept," and "proficient." A person who is skilled at performing tasks with their hands and has excellent dexterity could be described as being "dexterous." Some additional antonyms for "un dexterous" might include "graceful," "nimble," and "dextrous" itself. Overall, the antonyms for this word describe individuals who are skilled and capable of performing a wide range of manual tasks with precision, ease, and confidence.