turn against

verb

1. (preposition) to change or cause to change one's attitude so as to become hostile or to retaliate

Idioms and Phrases

Become or make antagonistic to, as in Adolescents often turn against their parents, but only temporarily, or She turned him against his colleagues by telling him they were spying on him. [First half of 1800s]

Related Words

• defy 
• overthrow 
• renounce 
• resist 
• revolt 
• secede 
• take up arms