Prefix worksheet focusing on "un-" and "dis-" to create new words from root words.

Let’s go through each word one by one. We need to add either un- or dis- in front of the root word to make a new word that makes sense.

Here’s how we think about it:

- un- usually means “not” — like *unhappy* = not happy.
- dis- often means “opposite of” or “remove” — like *disagree* = opposite of agree, or *disconnect* = remove connection.

Now let’s solve each one:

1. load → *unload* (to take things off)
2. happy → *unhappy* (not happy)
3. comfort → *uncomfortable*? Wait — but the root is “comfort”, so *uncomfort* isn’t common. Actually, we say *discomfort*. But wait — looking at #15, it says “comfortable”. So for #3, maybe it’s *discomfort*? Hmm… Let’s check standard usage. Actually, “uncomfort” is not used. The correct prefix for “comfort” as a verb is *dis-* → *discomfort*. But sometimes worksheets expect *un-* for adjectives. Wait — “comfort” can be a noun or verb. For this level, likely they want *discomfort*. But let’s hold on and see pattern.

Actually, let’s do all and double-check.

Better approach: Think of common words students know.

1. load → unload ✔
2. happy → unhappy ✔
3. comfort → discomfort (yes, that’s the common word) ✔
4. continue → discontinue (stop continuing) ✔
5. friendly → unfriendly (not friendly) ✔
6. allow → disallow (not allow) ✔
7. fair → unfair (not fair) ✔
8. obey → disobey (not obey) ✔
9. respect → disrespect (lack of respect) ✔
10. tie → untie (loosen a knot) ✔

Now second column:

11. agree → disagree ✔
12. trust → distrust (or mistrust, but distrust is with dis-) ✔
13. order → disorder (messy, not ordered) ✔
14. ripe → unripe (not ripe yet) ✔
15. comfortable → uncomfortable (not comfortable) ✔
16. honest → dishonest (not honest) ✔
17. pleasant → unpleasant (not pleasant) ✔
18. zip → unzip (open a zipper) ✔
19. known → unknown (not known) ✔
20. sure → unsure (not sure) ✔

Wait — let’s verify #3 again: “comfort”. Is it *uncomfort* or *discomfort*? In real English, we say “I feel discomfort” — so *discomfort* is correct. But some might argue “uncomfortable” is from “comfortable”, which is #15. Since #3 is just “comfort”, and it’s listed separately, *discomfort* is right.

Also, #12: “trust” → *distrust* is correct. Sometimes people say “mistrust”, but “distrust” uses “dis-”.

All others seem solid.

Let me list them clearly:

1. unload
2. unhappy
3. discomfort
4. discontinue
5. unfriendly
6. disallow
7. unfair
8. disobey
9. disrespect
10. untie
11. disagree
12. distrust
13. disorder
14. unripe
15. uncomfortable
16. dishonest
17. unpleasant
18. unzip
19. unknown
20. unsure

Double-checking tricky ones:

- #3: “comfort” → yes, *discomfort* is the standard word. You don’t say “uncomfort”.
- #6: “allow” → *disallow* is correct (e.g., “The teacher disallowed cheating”).
- #12: “trust” → *distrust* is correct.
- #15: “comfortable” → *uncomfortable* — yes, because it’s an adjective, and we use “un-” for negating adjectives often.

Everything checks out.

Final Answer:
1. unload
2. unhappy
3. discomfort
4. discontinue
5. unfriendly
6. disallow
7. unfair
8. disobey
9. disrespect
10. untie
11. disagree
12. distrust
13. disorder
14. unripe
15. uncomfortable
16. dishonest
17. unpleasant
18. unzip
19. unknown
20. unsure