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Recognise the Accurate Prefix

In this worksheet, students will choose the correct prefix for a word to create an antonym.

'Recognise the Accurate Prefix' worksheet

Key stage:  KS 2

Year:  Year 4 11+ worksheets

Curriculum topic:   Verbal Reasoning

Curriculum subtopic:   Antonyms

Difficulty level:  

Worksheet Overview

Welcome word detective, your EdPlace team have a puzzle for you to solve!  Are you up for the challenge?


How are the two words below related?




      girl searching


They mean the opposite of each other. Words that mean the opposite of each other are called antonyms.

Lots of antonyms to words can be made by adding a prefix. A prefix is a group of letters that goes in front of a word.

For example, to make the antonym of visible, the prefix in- is added in front of the word to make invisible.


The prefix in- can also be added in front of the following words to make their antonyms:

Formal > Informal

Complete > Incomplete

Can you think of any others?


We can also add the prefixes im-, un-, dis- and mis-, ir- and il- in front of words to find their antonyms.

Which prefix do we put in front of the word happy to make an antonym for the word?

The answer is un because un + happy = unhappy.




edplace 11+ detective


Here's a handy hint to help you reach superstar status:            

Remember you're looking for a word with the opposite meaning.


Now it’s time for you to find some antonyms!

Good luck.

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