mou4 dyun1 dyun1無端端无端端

Jyutpingmou4 dyun1 dyun1
Yalemòuh dyūn dyūn
副詞Common

Definition

For no reason, or all of a sudden without any sign or warning.

colloquialdescriptionsdaily actions

How it's used

Expresses a sense of bewilderment or annoyance regarding an action that lacks a clear cause or warning. It is frequently used in questions to challenge someone's sudden change in behavior or an unexpected event. Unlike the more neutral 突然, this term carries a stronger implication that the action is irrational or uncalled for.

Examples

Why did you buy so much stuff and bring it home all of a sudden?

Common phrases

to get angry for no reason
to laugh for no reason

Common mistake

Do not confuse this with 突然, which is a neutral descriptor for timing. Using 無端端 often adds a layer of judgment or frustration, so it is inappropriate when describing a sudden but logical event, such as a sudden rain shower or a sudden change in plans.

Grammar color guide

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