不可理喻 (bù kě lǐ yù) — impossible to reason with; impervious to reason; (of a person) stubborn and irrational

Definition

Examples

• 他简直不可理喻，怎么说都不听。
  Tā jiǎn zhí bù kě lǐ yù, zěn me shuō dōu bù tīng.
  He's simply impossible to reason with — no matter what you say, he won't listen.
• 你跟他讲道理没用，他不可理喻。
  Nǐ gēn tā jiǎng dào lǐ méi yòng, tā bù kě lǐ yù.
  It's useless to reason with him — he's impervious to reason.
• 这种不可理喻的人，还是别跟他争了。
  Zhè zhǒng bù kě lǐ yù de rén, hái shì bié gēn tā zhēng le.
  With this kind of unreasonable person, you'd better not argue with him.