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Understand and Spell Words with the Prefix un-

In this worksheet, students consider the meaning of words with the prefix un- and practise spelling them.

'Understand and Spell Words with the Prefix un-' worksheet

Key stage:  KS 1

Curriculum topic:  Writing: Transcription

Curriculum subtopic:  Use the Prefix -un

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.

 

For example, the prefix un- means 'not'.

Someone who is unhappy is not happy.

Add the prefix un- to the word below to make a new word.

 

able

Add the prefix un- to the word below to make a new word.

 

tidy

Add the prefix un- to the word below to make a new word.

 

lucky

Add the prefix un- to the word below to make a new word.

 

usual

Add the prefix un- to the word below to make a new word.

 

equal

Add the prefix un- to the word below to make a new word.

 

tie

Add the prefix un- to the word below to make a new word.

 

popular

Add the prefix un- to the word below to make a new word.

 

well

The letters un- at the beginning of a word are sometimes part of the word itself and not a prefix.

For example, underground is not the opposite of derground!

 

Un- is a prefix in two of the words below. Work out which ones by taking away the first two letters and seeing if you end up with a word that means the opposite.

 

Tick the two words where un- is a prefix.

until

understand

unfair

unwilling

Again, un- is a prefix in only two of the words below.

 

Tick the two words where un- is a prefix.

uncle

unlikely

uncertain

under

  • Question 1

Add the prefix un- to the word below to make a new word.

 

able

CORRECT ANSWER
unable
  • Question 2

Add the prefix un- to the word below to make a new word.

 

tidy

CORRECT ANSWER
untidy
  • Question 3

Add the prefix un- to the word below to make a new word.

 

lucky

CORRECT ANSWER
unlucky
  • Question 4

Add the prefix un- to the word below to make a new word.

 

usual

CORRECT ANSWER
unusual
  • Question 5

Add the prefix un- to the word below to make a new word.

 

equal

CORRECT ANSWER
unequal
  • Question 6

Add the prefix un- to the word below to make a new word.

 

tie

CORRECT ANSWER
untie
  • Question 7

Add the prefix un- to the word below to make a new word.

 

popular

CORRECT ANSWER
unpopular
  • Question 8

Add the prefix un- to the word below to make a new word.

 

well

CORRECT ANSWER
unwell
  • Question 9

The letters un- at the beginning of a word are sometimes part of the word itself and not a prefix.

For example, underground is not the opposite of derground!

 

Un- is a prefix in two of the words below. Work out which ones by taking away the first two letters and seeing if you end up with a word that means the opposite.

 

Tick the two words where un- is a prefix.

CORRECT ANSWER
unfair
unwilling
  • Question 10

Again, un- is a prefix in only two of the words below.

 

Tick the two words where un- is a prefix.

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

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