Unblunted is a term used to describe objects or tools that have not been dulled or made less sharp. To find antonyms for this word, we have to look for words that describe the opposite meaning. Some possible antonyms of "unblunted" include blunt, dull, round, and flat. These words can be used to describe knives, swords, razor blades, or other sharp objects that have become less effective due to wear and tear. If you are looking for a tool or object that is sharp and effective, you can use the word "unblunted" as a reference or look for specific antonyms that better express your needs.