Definition
蛮不讲理 is a four‑character idiom meaning 'to be utterly unreasonable and arbitrary.' It combines 蛮 (mán, 'rude, domineering') with 不讲理 (bù jiǎng lǐ, 'doesn't listen to reason'). You use it to criticize someone who stubbornly refuses logic or fairness — often in the pattern 太……了 or as a predicate. This phrase is stronger than simply 'unreasonable'; it carries a sense of willful arrogance.
v.p.
utterly unreasonablecompletely irrational and arrogant
Examples
- ，蛮不讲理。Tā zuò cuò le shì hái mà biérén, zhēn shì mán bú.He did something wrong and still blamed others — truly utterly unreasonable.
- 蛮不讲理，。Nǐ zhè zhǒng mán bú de tàidu, méi rén yuànyì bāng nǐ.With this kind of utterly unreasonable attitude, no one is willing to help you.
- 蛮不讲理，。Dàjiā juéde tā de yāoqiú mán bú, dōu bù tóngyì.Everyone thought his demand was utterly unreasonable and disagreed.
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