shuǐ​huǒ​bù​róng

completely incompatible

Senses

水火不容 shuǐ​huǒ​bù​róng completely incompatible

Literally "fire and water cannot coexist"; used to describe two people or groups who are mutually exclusive or fundamentally opposed.

References

synonym 水火不容/水火不容 冰炭不洽/冰炭不洽
antonym 水火不容/水火不容 胶漆相投/膠漆相投
antonym 水火不容/水火不容 针芥相投/針芥相投