mou4 cing4 baak6 si6無情白事无情白事
Jyutpingmou4 cing4 baak6 si6
Yalemòuh chìhng baahk sih
Definition
For no reason; out of the blue; suddenly and unexpectedly doing something without any justification.
colloquialdaily actionsother
How it's used
Focus on the lack of logical cause or preceding events when using this phrase. It implies that the action is abrupt and lacks a clear motive, often suggesting that the speaker finds the behavior strange or annoying. It is frequently used to question someone's sudden change in attitude or unexpected actions.
Examples
Why did you buy so many snacks for no reason?
He suddenly came over to apologize to me for no apparent reason.
Related words
Common phrases
to lose one's temper for no reason
to laugh for no apparent reason
Common mistake
Do not confuse this with just being sudden, as it specifically emphasizes the absence of a reason or justification. It is not used for events that are merely fast or surprising, but rather for those that seem completely unprovoked or out of place.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- QuestionsFrom yes or no questions to asking who, what, where, and when. The patterns you need to ask questions naturally in Cantonese.
- ClassifiersCantonese puts a classifier between a number and a noun, and a bare classifier on its own can mean the. Learn the common ones and how to use them.
- ComparisonsHow to say bigger than, the most, the same as, and not as good as. Cantonese uses 過 where Mandarin uses 比, and that catches a lot of learners out.



