Types of prefixes
Opposites
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Definitions
Create new meanings
100

What does the prefix co- mean?
cooperate

together

100

What is the opposite of secure?

insecure

100

I ______agree with the idea. I don't think we should do this.

 disagree

100

What do we call a form of transportation that is underground?

___way

subway

100

Add a prefix to the word agree to make negative meaning.

disagree

200

what does the prefix post- mean?
postgraduate, post-workout

after

200

What is the opposite of employed?

unemployed

200

I'm _____capable of swimming, I've tried learning.

incapable

200

How do we call a half circle?

___circle

semicircle

200

Add a prefix to the word legal to make negative meaning.

illegal

300

what does the prefix pre- mean?
prefix, pregame 

before

300

What is the opposite of mature?

impossible

300

In my opinion, it's _____responsible to litter.

irresponsible 

300

How do we say when there are too many people in a country, city or area?

___populated

overpopulated

300

Add a prefix to the word successful to make negative meaning.

unsuccessful

400

what does the prefix inter- mean?
intercultural, interactive

between

400

What is the opposite of probable?

improbable

400

I think people _____estimate his talent.

underestimate 

400

What do we call speed that is faster than the speed of sound?

___sonic

supersonic

400

Add a prefix to the word practical to make negative meaning.

impractical

777

WAGER YOUR POINTS

What does the prefix out- mean?

to surpass or exceed something

e.g. outgrow, outlive, outnumbered

777

WAGER YOUR POINTS

What is the opposite of responsible?

irresponsible

777

WAGER YOUR POINTS

Chewing gum is ___legal in some countries.

illegal

777

GAMBLE YOUR POINTS

What do we call a surgery where a damaged organ (e.g. heart) is taken out and replaced with a healthier organ?

____plant

transplant

777

GAMBLE YOUR POINTS

Add a prefix to the word clockwise to make the opposite/negative meaning.

anticlockwise