turn against
To change from being on someone's side to being against them.
Meanings
To become hostile, opposed to, or disloyal toward someone or something one previously supported.
"After the scandal, many of his closest supporters turned against him."
"Et tu, Brute?"
— William Shakespeare, Julius Caesar, Act 3, Scene 1
To cause someone to become hostile or opposed to another person or thing.
"The negative media coverage turned the public against the new policy."
(of something abstract, such as circumstances or one's own body) To work against someone's interests.
"His own immune system had turned against him."
Can be used reflexively ('turn against oneself') to describe self-destructive thinking. The subject can be a person, an institution, or even abstract forces. It always implies a change of attitude from neutral or positive to negative.
Commonly used with
Forms
Understand "turn against" better
Real video examples
Video examples are being collected. Check back soon.
Want to master this phrasal verb?
Practice "turn against" on Looplines