Visual representation of the prefix "Un-" with examples of antonyms formed by adding it to various words.
Diagram showing the word "Un-" in the center surrounded by six blue circles, each containing a pair of antonyms: Educated/Uneducated, Able/Unable, Finished/Unfinished, Clear/Unclear, Safe/Unsafe, Fortunate/Unfortunate, and Grateful/Ungrateful.