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Revise Root Words: Adding Prefixes 2

In this worksheet, students choose the correct prefix to change a word into its antonym (opposite).

'Revise Root Words: Adding Prefixes 2' worksheet

Key stage:  KS 2

Curriculum topic:  Reading: Word Reading

Curriculum subtopic:  Root Word Awareness

Difficulty level:  

down

Worksheet Overview

QUESTION 1 of 10

A prefix is a letter or group of letters added to the beginning of a word. Knowing what a prefix means can help us to understand new words.

 

There are many different prefixes that change a word into its antonym (opposite).

lucky / unlucky

appear / disappear

visible / invisible

possible / impossible

legal / illegal

 

In this worksheet you can practise choosing the correct prefix to create antonyms. You may find a dictionary helpful if you are not sure which one is correct.

Choose the correct antonym of the word agree.

unagree

disagree

inagree

Choose the correct antonym of the word convenient.

unconvenient

disconvenient

inconvenient

Choose the correct antonym of the word fair.

unfair

infair

imfair

Choose the correct antonym of the word probable.

unprobable

disprobable

improbable

Choose the correct antonym of the word qualify.

imqualify

disqualify

inqualify

Add the correct prefix to the word obey to make it into its antonym.

 

Write the new word in the answer box.

Add the correct prefix to the word friendly to make it into its antonym.

Add the correct prefix to the word sensitive to make it into its antonym.

Add the correct prefix to the word allow to make it into its antonym.

Add the correct prefix to the word certain to make it into its antonym.

  • Question 1

Choose the correct antonym of the word agree.

CORRECT ANSWER
disagree
  • Question 2

Choose the correct antonym of the word convenient.

CORRECT ANSWER
inconvenient
  • Question 3

Choose the correct antonym of the word fair.

CORRECT ANSWER
unfair
  • Question 4

Choose the correct antonym of the word probable.

CORRECT ANSWER
improbable
  • Question 5

Choose the correct antonym of the word qualify.

CORRECT ANSWER
disqualify
  • Question 6

Add the correct prefix to the word obey to make it into its antonym.

 

Write the new word in the answer box.

CORRECT ANSWER
disobey
  • Question 7

Add the correct prefix to the word friendly to make it into its antonym.

CORRECT ANSWER
unfriendly
  • Question 8

Add the correct prefix to the word sensitive to make it into its antonym.

CORRECT ANSWER
insensitive
  • Question 9

Add the correct prefix to the word allow to make it into its antonym.

CORRECT ANSWER
disallow
  • Question 10

Add the correct prefix to the word certain to make it into its antonym.

CORRECT ANSWER
uncertain
---- OR ----

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