Explore this spelling list: Words beginning with the prefix un-. This page and its activities are crafted to help you perfect your spelling. Explore the various learning activities and complete a spelling test to evaluate your progress.
A prefix is a short group of letters that is added to the beginning of a word in order to change its meaning.
Un- is an Old English prefix that means not.
It is like a secret code that, when added to the start of a word, signifies the opposite or the reversal of a base word's meaning. For example, undo means to reverse an action, unseen means not seen, and unlock means to free something from a locked state.
Once you have identified the base word, you can usually work out what an un- word means even if you’ve never come across it before. You’ll become an expert at un- words in no time with our spelling activities!
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unwell |
Peter had been feeling unwell all morning.
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unable |
The boy tried to push the door, but he was unable to open it.
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unhappy |
When she lost the race, Rosie was very unhappy.
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untidy |
His handwriting is just an untidy scrawl.
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untrained |
The dog kept barking at the door because he was untrained.
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unlucky |
We were unlucky to lose the game by one goal.
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unpopular |
The politician is immensely unpopular.
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unpick |
He wanted to unpick the stitches and start his sewing from scratch.
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unseen |
The exam includes unseen poems.
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unusual |
We have had an unusual amount of rain this month.
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undo |
The knot was too tight to undo.
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untie |
The girl could not untie her laces.
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