Definition of 'EXTREME'

"Either of two abstract things that are as different from each other as possible."


In different contexts - 


"Of a character or kind farthest removed from the ordinary or average" extreme measures.
"Utmost or exceedingly great in degree" extreme joy.
"Farthest from the center or middle; outermost; endmost" the extreme limits of a town.
"Exceeding the bounds of moderation" extreme fashions.


Different examples of how it can be used - 

1. The plant is sensitive to extreme heat and cold.
2. They are living in extreme poverty.
3. She went on an extreme diet.
4. Many thought that the punishment was too extreme for the crime.
5. The plan was rejected as too extreme.
6. This is an extreme example of what can happen when a company grows too quickly.
7. He has extreme opinions when it comes to politics.
8. Members of the extreme right opposed the legislation.
9. She took part in an extreme sport.