mou4 mou4 dyun1 dyun1無無端端无无端端

Jyutpingmou4 mou4 dyun1 dyun1

Yalemòuh mòuh dyūn dyūn

Definition

For no reason, out of the blue, or unexpectedly.

colloquialdaily actionsemotion

How it's used

This adverb captures a sense of bewilderment or annoyance at an action that lacks any apparent cause or justification. It is frequently used to express frustration when someone behaves erratically or when an event occurs without any logical sequence. The repetition of the character 無 emphasizes the complete absence of any underlying reason.

Examples

keoi5佢mou4無mou4無dyun1端dyun1端faat3發pei4脾hei3氣，haak3嚇can1親daai6大gaa1家aa4呀。

He suddenly lost his temper for no reason, scaring everyone.

nei5你zou6做mat1乜mou4無mou4無dyun1端dyun1端maai5買gam3咁do1多je5嘢faan1返lai4嚟？

Why did you buy so much stuff for no reason?

Common phrases

mou4無mou4無dyun1端dyun1端faat3發fo2火

to get angry for no reason

mou4無mou4無dyun1端dyun1端zau2走zo2咗heoi3去

to leave suddenly without any explanation

Common mistake

Avoid using this to describe a sudden event that has a clear, logical cause, such as a sudden rainstorm or a sudden noise. It is specifically reserved for human actions or situations where the lack of a reason is the primary focus.