The document defines and provides examples of prefixes un-, de-, and dis-. It explains that the prefix un- means not, against, or opposite, de- means away from or down, and dis- means not or the opposite. It then provides definitions and examples of 20 words that use these prefixes, such as uncover, defrost, uncomfortable, and discourage.

1. Prefixes un-, de-, dis-
List # 15
5th grade

2. prefixes
• A prefix is a letter or a group of letters that
appears at the beginning of a word. The base
word does not change.
• The prefix de- means away from or down.
• The prefix dis- means not, or the opposite of
something.
• The prefix un- means not, against, or opposite.

3. uncover
• to remove the cover or covering from.

4. defrost
• to remove the frost or ice from

5. uncomfortable
• causing a feeling of physical discomfort

6. discourage
• to make (someone) less determined, hopeful,
or confident

7. disadvantage
• something that puts one in an unfavorable
position or condition

8. unfortunate
• the state of a person or thing that suffers.

9. unfamiliar
• not frequently seen, heard, or experienced

10. disability
• a condition (such as an illness or an injury)
that damages or limits a person's physical or
mental abilities

11. discomfort
an uncomfortable or painful feeling in
the body

12. deodorant
• a substance that you put on your body and
especially under your arms to prevent,
remove, or hide unpleasant smells

13. unemployed
• having no job : not employed

14. deflate
• to lose air or gas from inside

15. disbelief
• a feeling that you do not or cannot believe or
accept that something is true or real

16. unpredictable
• not able to be predicted

17. disapprove
• to believe that someone or something is bad
or wrong

18. disappoint
• to make (someone) unhappy by not being as
good as expected

19. unpleasant
• not pleasant or enjoyable

20. dehydrated
• to lose too much water

21. disqualify
• to stop or prevent (someone) from doing,
having, or being a part of something

22. undecided
• not decided or determined.

23. unnecessary
• not needed

24. disobedient
• not doing what someone or something with
authority tells you to do

25. dehumidifier
• to take moisture from (as the air)

26. disinfectant
• a chemical substance that is used to kill
harmful germs and bacteria

27. disenchanted
• no longer happy or satisfied with something