fēng​mǎ​niú​bù​xiāng​guān

totally unrelated

Senses

风马牛不相关/ 風馬牛不相關 fēng​mǎ​niú​bù​xiāng​guān totally unrelated

(variant form) to be completely unrelated; to have nothing in common; having as little to do with each other as cattle and horses in heat

References

variant 风马牛不相及/風馬牛不相及 风马牛不相关/風馬牛不相關