hater

American  

[hey-ter] / ˈheɪ tər /

noun

1. a person who has an intense dislike for another person or thing (often used in combination).

   I'm a big hater of opera.

   Are you a dog-hater?

2. Informal. a person who thrives on showing hate toward, criticizing, or belittling other people or things, usually unfairly.

   The guy is just a hater, looking for a fight.

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hater British  

/ ˈheɪtə /

noun

1. 1. someone who hates a specified person or thing

      a passionate hater of tyranny

   2. ( in combination )

      a woman-hater

      a cop-hater

2. informal a grudging or spiteful person, esp one who disparages others

   Don't let the haters get you down

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Etymology

Origin of hater

1350–1400; Middle English; see hate + -er ¹

Example Sentences

Yet the singer — a tabloid fixture since the days when he dated Taylor Swift and Jessica Simpson — says he’s not tortured by his haters.

From Los Angeles Times

The band have also uploaded posts pushing back at "haters", something Evan says only makes them more determined to succeed.

From BBC

She fired back at haters in the letters section.

From Los Angeles Times

Baldwin shared a video to Instagram, calling on any Dano haters to be quiet.

From Salon

With distance, I’m pretty sure the haters will come around.

From Los Angeles Times