Prefixes and Suffixes — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. To not obey a rule is to disobey the rule.
The prefix dis- means 'not' or 'opposite of.' Adding dis- to obey makes disobey.
2. A child who shows no fear is fearless.
The suffix -less means 'without.' Adding -less to fear makes fearless, meaning without fear.
3. To view something before others is to preview it.
The prefix pre- means 'before.' Preview means to view before others.
4. The state of being kind is called kindness.
The suffix -ness means 'the state of.' Adding -ness to kind makes kindness.
5. Adding -ly to "quiet" makes the word quietly.
The suffix -ly means 'in a way.' Adding -ly to quiet makes quietly.
6. To build something again is to rebuild it.
The prefix re- means 'again.' Rebuild means to build again.
7. Someone full of thanks is thankful.
The suffix -ful means 'full of.' Adding -ful to thank makes thankful.
8. A dog that does not like baths will dislike bath time.
The prefix dis- means 'not' or 'opposite of.' Dislike means to not like.
9. The exciteexcitement before the trip was hard to contain.
The suffix -ment turns the verb excite into the noun excitement, meaning the state of being excited.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
pre-
→ before
opposite of
dis-
→ opposite of
state of
-ness
→ state of
before
-ly
→ in a way
in a way
pre- means before, dis- means opposite of, -ness means state of, and -ly means in a way.