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Prefixes un-, de-, dis-
3rd Bimonthly5th grade
prefixes
• A prefix is a letter or a group of letters that appears at the beginning of a word and changes the word's
• 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.
uncover
• to remove the cover or covering from.
defrost
• to remove the frost or ice from
uncomfortable
• causing a feeling of physical discomfort
discourage
• to make (someone) less determined, hopeful, or confident
disadvantage
• something that puts one in an unfavorable position or condition
unfortunate
• the state of a person or thing that suffers.
unfamiliar
• not frequently seen, heard, or experienced
disability
• a condition (such as an illness or an injury) that damages or limits a person's physical or mental abilities
discomfort
an uncomfortable or painful feeling in the body
deodorant
• a substance that you put on your body and especially under your arms to prevent, remove, or hide unpleasant smells
unemployed
• having no job : not employed
deflate
• to lose air or gas from inside
disbelief
• a feeling that you do not or cannot believe or accept that something is true or real
unpredictable
• not able to be predicted
disapprove
• to believe that someone or something is bad or wrong
disappoint
• to make (someone) unhappy by not being as good as expected
unpleasant
• not pleasant or enjoyable
dehydrated
• to lose too much water
disqualify
• to stop or prevent (someone) from doing, having, or being a part of something
undecided
• not decided or determined.
unnecessary
• not needed
disobedient
• not doing what someone or something with authority tells you to do
dehumidifier
• to take moisture from (as the air)
disinfectant
• a chemical substance that is used to kill harmful germs and bacteria
disenchanted
• no longer happy or satisfied with something