Prefixes worksheet focusing on "un-" and "dis-" to form new words and complete sentences.

Sure! Let’s solve this worksheet step by step.

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## Part A: Add the correct prefix (un- or dis-) to each base word

We need to choose between “un-” and “dis-” to form a real, meaningful word. Here’s how to decide:

- “un-” usually means “not” and is added to adjectives, verbs, and nouns (e.g., *unhappy*, *unlock*).
- “dis-” often means “opposite of,” “away from,” or “lack of,” and is commonly used with verbs and nouns (e.g., *disagree*, *disrespect*).

Let’s go one by one:

1. zip → unzip ✔
*(You “unzip” something — it’s a common verb.)*

2. comfort → uncomfortable? Wait — but the base word is “comfort”, so we can say “uncomfort”? No — that’s not a word.
Actually, the correct word is “discomfort” ✔
*(“Discomfort” = lack of comfort — this is the standard word.)*

3. friendly → unfriendly ✔
*(“Not friendly” — very common adjective.)*

4. agree → disagree ✔
*(Opposite of agree — standard word.)*

5. ripe → unripe ✔
*(Not ripe — common adjective for fruit.)*

6. pleasant → unpleasant ✔
*(Not pleasant — common adjective.)*

7. order → disorder ✔
*(Lack of order — standard noun.)*

8. respect → disrespect ✔
*(Lack of respect — common verb/noun.)*

9. fair → unfair ✔
*(Not fair — common adjective.)*

10. trust → distrust ✔
*(Lack of trust — common verb/noun.)*

> 💡 Note: Some words can take both prefixes, but only one is standard or most common. For example, “uncomfort” isn’t a word — we say “discomfort.” Similarly, “disfriendly” isn’t a word — we say “unfriendly.”

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✔ Final Answers for Part A:

1. unzip
2. discomfort
3. unfriendly
4. disagree
5. unripe
6. unpleasant
7. disorder
8. disrespect
9. unfair
10. distrust

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## Part B: Use the words you made above to complete each sentence

Now we match the words from Part A to fit logically into the sentences.

11. His case of chickenpox caused Kenoah great _______________.
→ Chickenpox causes discomfort.
✔ discomfort

12. Remaine could not _______________ his jacket.
→ You “unzip” a jacket.
✔ unzip

13. That _______________ dog barks and snaps at everyone.
→ A dog that barks and snaps is unfriendly.
✔ unfriendly

> 📝 Note: We’re using the exact words formed in Part A — so even though “unfriendly” is an adjective, it fits perfectly here to describe the dog.

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✔ Final Answers for Part B:

11. discomfort
12. unzip
13. unfriendly

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## 🎯 Completed Worksheet Summary:

A.
1. unzip
2. discomfort
3. unfriendly
4. disagree
5. unripe
6. unpleasant
7. disorder
8. disrespect
9. unfair
10. distrust

B.
11. discomfort
12. unzip
13. unfriendly

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✔ All done! This worksheet helps students understand how prefixes “un-” and “dis-” change the meaning of base words — mostly by creating opposites or indicating absence. Great practice for vocabulary and grammar!