嘴硬 (zuǐ yìng) — (verb phrase) to stubbornly deny fault or refuse to admit defeat; to be argumentative and unyielding in words

Definition

Examples

• 他其实知道自己错了，但就是嘴硬，不肯认错。
  Tā qí shí zhī dào zì jǐ cuò le, dàn jiù shì zuǐ yìng, bù kěn rèn cuò.
  He actually knows he's wrong, but he just refuses to admit it and won't apologize.
• 你别嘴硬了，证据都摆在这里。
  Nǐ bié zuǐ yìng le, zhèng jù dōu bǎi zài zhè lǐ.
  Stop being stubborn — the evidence is right here.
• 她嘴上嘴硬，心里其实已经后悔了。
  Tā zuǐ shàng zuǐ yìng, xīn lǐ qí shí yǐ jīng hòu huǐ le.
  She talks tough, but deep down she already regrets it.