A misanthrope is a person who hates or mistrusts other people. It is used to define a person who dislikes humankind and avoids human society.
This is a formal word, derived from Greek misanthrōpos “hating mankind,” from misein “to hate” plus anthrōpos “a man.” From the same root, we get the English word anthropology “the study of humans.” If you make a statement or do something that is particularly hostile or untrusting, you can call that misanthropic.
>Is he a cynical misanthrope or a disappointed humanitarian?
>As the hermit lived far away from the village, everyone thought he was a misanthrope who hated the world.