A single word for someone who is quick to hate others

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.


Solution 1:

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.

Solution 2:

Malevolent (or malicious, which is close) may do it: wishing evil or harm to another or others; showing ill will; ill-disposed; malicious

Ill-disposed itself would also be good. Someone who is ill-disposed towards others has a tendency to dislike them.

Hostile and antagonistic can be used to describe people who act aggressively, treating others as if they are (potential) enemies.