KS2 SATs English

Prefixes and Suffixes

30 free practice questions with explanations

PassNova has 30 free KS2 SATs English practice questions on Prefixes and Suffixes, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.

Sample questions

Prefixes and Suffixes: example questions & answers

12 worked examples with answers and explanations below. Practise all 30 Prefixes and Suffixes questions free in the browser, with instant feedback on every answer.

  1. What does the prefix 'un-' mean in 'unhappy'?

    • AVery
    • BNot
    • CBefore
    • DAgain

    Answer: 'Un-' is a prefix meaning 'not'. 'Unhappy' means 'not happy'.

  2. What does the suffix '-ness' mean in 'kindness'?

    • ATo do something
    • BMore than
    • CThe state or quality of
    • DNot having

    Answer: '-Ness' is a suffix that turns adjectives into nouns. 'Kindness' is the quality of being kind.

  3. Which word has the prefix 'dis-'?

    • Arepay
    • Bdisagree
    • Crerun
    • Dunhappy

    Answer: 'Disagree' has the prefix 'dis-' meaning 'not' or 'opposite'. It means to not agree.

  4. What does '-ful' mean in 'careful'?

    • AWithout
    • BFull of
    • CNot
    • DTo do

    Answer: '-Ful' is a suffix meaning 'full of'. 'Careful' means 'full of care'.

  5. Which suffix changes a verb to a noun in 'improvement'?

    • A-ment
    • B-ness
    • C-ful
    • D-less

    Answer: '-Ment' is a suffix that turns verbs and adjectives into nouns. 'Improve' + 'ment' = 'improvement'.

  6. What is the opposite of 'comfortable' using a prefix or suffix?

    • Auncomfort
    • Bdiscomfort
    • Cuncomfortable
    • Dcomfortless

    Answer: 'Uncomfortable' uses the prefix 'un-' to mean 'not comfortable'.

  7. What does the prefix 'mis-' mean in 'mistake'?

    • AVery
    • BNot
    • CWrong or badly
    • DBefore

    Answer: 'Mis-' means 'wrong' or 'badly'. A 'mistake' is something done wrongly.

  8. Which word means 'without help' using a suffix?

    • Aunhelp
    • Bdishelped
    • Chelpless
    • Dunhelpful

    Answer: '-Less' is a suffix meaning 'without'. 'Helpless' means 'without help'.

  9. What does '-ly' do in 'slowly'?

    • AMakes it a noun
    • BChanges an adjective to an adverb
    • CMeans 'not'
    • DMeans 'again'

    Answer: '-Ly' is a suffix that typically turns adjectives into adverbs. 'Slow' + 'ly' = 'slowly'.

  10. Identify the prefix and suffix in 'misunderstanding':

    • Amis- and -ing
    • Bun- and -ness
    • Cmis- and -ment
    • Dre- and -ness

    Answer: 'Mis-' is the prefix meaning 'wrong', and '-ing' is the suffix forming the present participle.

  11. What does 're-' mean in 'rebuild'?

    • ANot
    • BAgain
    • CWrong
    • DBefore

    Answer: 'Re-' is a prefix meaning 'again'. 'Rebuild' means to build again.

  12. Which word has both a prefix and a suffix?

    • Ahappy
    • Bunthinkable
    • Ccreate
    • Dquickly

    Answer: 'Unthinkable' has the prefix 'un-' and the suffix '-able' (or '-ible').

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