The Chinese idiom **无理取闹** (wúlǐ qǔnào) is formed through a logical, two-part grammatical construction common in classical Chinese. The first half, **无理** (wúlǐ), literally means "without reason" or "lacking principle," establishing the baseless foundation of the action. The second half, **取闹** (qǔnào), means "to pick a quarrel" or "to make trouble," with **取** implying a deliberate act of "taking" or "engaging in," and **闹** meaning "noise" or "disturbance." Combined, the phrase progresses from a state (being unreasonable) to an active, vexatious behavior (causing trouble), thus forming the complete meaning of "to make trouble willfully without reason" or "to be deliberately provocative." Its formation and usage were notably solidified in a famous prose work by Han Yu of the Tang Dynasty, who used it to criticize baseless criticisms, thereby cementing its place in the language as a critique of unjustified contention.