hater

/ˈheɪtər/
noun
  1. A person who strongly dislikes someone or something.
    • She's a known hater of early morning meetings.
    • He's not a fan of spicy food; he's a total hater of anything hot.
    • The celebrity's haters left nasty comments on her post.
  2. A person who expresses negativity or criticism, especially online or in a petty way.
    • Every successful person has haters who try to bring them down.
    • The singer's new album got mixed reviews, but most haters hadn't even listened to it.
    • Ignore the haters and keep doing what you love.
Antonyms