A cynic is a person who believes that people are motivated by selfishness and that nothing is truly good or sincere. They often have a negative, skeptical outlook on life and human nature.
Here are some synonyms for cynic:
* Skeptic
* Pessimist
* Doubter
* Misanthrope (someone who dislikes or distrusts humanity)
If you meant a different word, please provide more context or spelling so I can help you understand its meaning.