Words Starting with UN: Meaning, Prefixes and Examples
The prefix un- often means ‘not’ or reverses an action, but each word still needs its own definition.
Clear Explanation
• Unable means not able.
• Unfair means not fair.
• Unlock reverses the action of locking.
• Some words beginning with un are not best analyzed by removing a living prefix.
• Check spelling when the base word changes at a boundary.
Examples
The cause remains unknown.
Please unlock the door.
The rule seemed unfair.
Quick Comparison
Common Mistake
Do not assume every word beginning with the letters u-n has the same prefix structure.
Frequently Asked Questions
Does un- always mean not?
No. It can also reverse an action, and some words require separate analysis.
Where can I browse more U words?
Use the U dictionary hub and Word Finder.