Prefixes and suffixes - Free Printable
Educational worksheet: Prefixes and suffixes. Download and print for classroom or home learning activities.
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Step-by-step solution for: Prefixes and suffixes
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Show Answer Key & Explanations
Step-by-step solution for: Prefixes and suffixes
Let's solve each sentence by adding the correct prefix or suffix to the word in brackets to make a new word that fits the context. We'll use the given prefixes: DIS-, UN-, IM-, RE-, and suffixes: -ING, -ED, -ANCE, -FUL, -ABLE, -LY, -OUS, -ER.
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→ "I can't answer" means it's not possible.
Use prefix IM- → IMPOSSIBLE
✔ Answer: impossible
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→ Need an adjective meaning "dangerous". Use suffix -OUS → DANGEROUS
✔ Answer: dangerous
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→ Needs past participle form of "cook" to describe state → COOKED
Use suffix -ED
✔ Answer: cooked
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→ She is sad, so opposite of happy → UNHAPPY
Use prefix UN-
✔ Answer: unhappy
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→ Need noun form of "appear" → APPEARANCE
Use suffix -ANCE
✔ Answer: appearance
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→ He doesn't wait → he lacks patience → IMPATIENT
Use prefix IM-
✔ Answer: impatient
---
→ Need adjective meaning "helpful" → HELPFUL
Use suffix -FUL
✔ Answer: helpful
---
→ Opposite of honest → DISHONEST
Use prefix DIS-
✔ Answer: dishonest
---
→ Need noun for person who teaches → TEACHER
Use suffix -ER
✔ Answer: teacher
---
→ Need adjective to describe the book → INTERESTING
Use suffix -ING
✔ Answer: interesting
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→ The person is not known → UNKNOWN
Use prefix UN-
✔ Answer: unknown
---
→ Need verb meaning "to write again" → REWRITE
Use prefix RE-
✔ Answer: rewrite
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→ Not usual → unusual → UNUSUAL
Use prefix UN-
✔ Answer: unusual
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→ Need adjective meaning "pleasant to watch" → ENJOYABLE
Use suffix -ABLE
✔ Answer: enjoyable
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→ Need adjective meaning "friendly" → FRIENDLY
Use suffix -LY
✔ Answer: friendly
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→ Disagreeing → DISAGREE
Use prefix DIS-
✔ Answer: disagree
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1. impossible
2. dangerous
3. cooked
4. unhappy
5. appearance
6. impatient
7. helpful
8. dishonest
9. teacher
10. interesting
11. unknown
12. rewrite
13. unusual
14. enjoyable
15. friendly
16. disagree
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- Prefixes change the meaning (e.g., *un-* = not, *im-* = not, *dis-* = opposite, *re-* = again).
- Suffixes change the part of speech (e.g., *-er* = person, *-ing* = present participle/gerund, *-able* = capable of, *-ly* = adverb, *-ous* = full of, etc.).
Each answer uses one of the provided prefixes or suffixes logically based on grammar and context.
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1. I can't answer this question. It's ............... (POSSIBLE).
→ "I can't answer" means it's not possible.
Use prefix IM- → IMPOSSIBLE
✔ Answer: impossible
---
2. Don't stand near the water. It's too ............... (DANGER).
→ Need an adjective meaning "dangerous". Use suffix -OUS → DANGEROUS
✔ Answer: dangerous
---
3. I don't like this fish. It's not very well ............... (COOK).
→ Needs past participle form of "cook" to describe state → COOKED
Use suffix -ED
✔ Answer: cooked
---
4. Kate started crying because she was so ............... (HAPPY)
→ She is sad, so opposite of happy → UNHAPPY
Use prefix UN-
✔ Answer: unhappy
---
5. If you have a haircut it will change your ............... (APPEAR)
→ Need noun form of "appear" → APPEARANCE
Use suffix -ANCE
✔ Answer: appearance
---
6. Paul never waits in queues. He is too ............... (PATIENT)
→ He doesn't wait → he lacks patience → IMPATIENT
Use prefix IM-
✔ Answer: impatient
---
7. Thank you for your advice. You have been very ............... (HELP)
→ Need adjective meaning "helpful" → HELPFUL
Use suffix -FUL
✔ Answer: helpful
---
8. Stealing other people's money is ............... (HONEST)
→ Opposite of honest → DISHONEST
Use prefix DIS-
✔ Answer: dishonest
---
9. Our science ............... is very young. (TEACH)
→ Need noun for person who teaches → TEACHER
Use suffix -ER
✔ Answer: teacher
---
10. Harry didn't think the book was very ............... (INTEREST)
→ Need adjective to describe the book → INTERESTING
Use suffix -ING
✔ Answer: interesting
---
11. A million pounds was given to the hospital by an ............... person (KNOWN)
→ The person is not known → UNKNOWN
Use prefix UN-
✔ Answer: unknown
---
12. When you ............... this paragraph, make it a bit shorter (WRITE)
→ Need verb meaning "to write again" → REWRITE
Use prefix RE-
✔ Answer: rewrite
---
13. Mary was wearing a/an ............... hat (USUAL)
→ Not usual → unusual → UNUSUAL
Use prefix UN-
✔ Answer: unusual
---
14. That was a great film. It was really ............... (ENJOY)
→ Need adjective meaning "pleasant to watch" → ENJOYABLE
Use suffix -ABLE
✔ Answer: enjoyable
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15. I like this town. The people are very ............... (FRIEND)
→ Need adjective meaning "friendly" → FRIENDLY
Use suffix -LY
✔ Answer: friendly
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16. I don't think you're right. I ............... with you completely (AGREE)
→ Disagreeing → DISAGREE
Use prefix DIS-
✔ Answer: disagree
---
✔ Final Answers:
1. impossible
2. dangerous
3. cooked
4. unhappy
5. appearance
6. impatient
7. helpful
8. dishonest
9. teacher
10. interesting
11. unknown
12. rewrite
13. unusual
14. enjoyable
15. friendly
16. disagree
---
🔍 Explanation Summary:
- Prefixes change the meaning (e.g., *un-* = not, *im-* = not, *dis-* = opposite, *re-* = again).
- Suffixes change the part of speech (e.g., *-er* = person, *-ing* = present participle/gerund, *-able* = capable of, *-ly* = adverb, *-ous* = full of, etc.).
Each answer uses one of the provided prefixes or suffixes logically based on grammar and context.
Parent Tip: Review the logic above to help your child master the concept of prefix and suffix worksheet with answers.
