What is a single word to describe someone who is quick to hate others?
With anger we can say quick-tempered, but what about quick in hating other people/easily hates others.
Hateful means full of hate, but doesn't really give the meaning of being quick to hate people.
Best Answer
Misanthrope: defined by Merriam-Webster as "a person who hates or distrusts humankind." It may be too broad for your need, but if you mean to say that the person harbors an angry, resentful hatred for his/her fellow man/woman, this word might be what you're looking for.