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Know Your Suffixes: Make Adjectives into Nouns

In this worksheet, students will practise changing adjectives into nouns by adding the suffixes -ness and -ity.

'Know Your Suffixes: Make Adjectives into Nouns' worksheet

Key stage:  KS 2

Year:  Year 4 English worksheets

Curriculum topic:   Reading: Word Reading

Curriculum subtopic:   Root Word Awareness

Popular topics:   Adjectives worksheets, Nouns worksheets

Difficulty level:  

Worksheet Overview

A suffix is a letter or a group of letters added to the end of a word. Using a suffix lets us make new words.




For example: sad + ness = sadness 


The suffix ness is used to change many adjectives (describing words) into nouns (naming words).


For example: thick + ness = thickness

The book Kate was reading was very thick. (adjective)

Do you know the thickness of this piece of wood? (noun)


If the adjective ends in 'y' then it needs to be changed to 'i' before ness is added.

happy + ness = happiness


The suffix ity can also be used to change adjectives into nouns.

 For example: similar + ity = similarity

The twins were very similar. (adjective)

The teacher thought that Paul had copied Jack because there was a great similarity between their answers. (noun)


two twins


If an adjective ends in 'e' then the 'e' needs to be dropped before ity is added.

pure + ity = purity


That's a lot to remember! You can look back at this page at any point by clicking on the red help button that will appear on the screen when you start the questions.

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