* It's a misspelling. Perhaps you meant a similar word like "unseen," "unanswered," or "unannounced."
* It's a regional dialect or slang term. It's possible the word is used in a specific location or community.
* It's a made-up word. The word might be part of a fictional story, a game, or a personal invention.
To help me understand what you meant, please provide more context:
* What was the sentence or situation where you encountered this word?
* Do you have any other clues about its meaning?
With more information, I can try to help you figure out what "Unanse" might mean.