A sadist is a person who gets pleasure out of giving pain to others.
Given below are some dictionary definitions of certain kinds of persons.
Find out the words that fit these descriptions. 

1. A person who considers it important that things should be correct or genuine e.g. in the use of the language or in arts.
2. A person who believes that the war and violence are wrong and will not fight in the war.
3. A person who believes that nothing really exists.
4. A person who is always hopeful and expects the best in all things.
5. A person who follows the generally accepted norms of behaviour.
6. A person who believes that material possessions are all that matter in life.