koi3 sai3 mou4 soeng1蓋世無雙盖世无双
Jyutpingkoi3 sai3 mou4 soeng1
Yalekoi sai mòuh sēung
Definition
Unrivalled; unique; the only one in the world.
writtendescriptions
How it's used
This idiom carries a grand, slightly dramatic tone often found in martial arts novels or historical storytelling. It is rarely used in casual, everyday conversation to describe mundane things, as it implies a level of excellence that is literally unmatched in the entire world. Using it for minor achievements can sound sarcastic or overly hyperbolic.
Examples
Their cooking skills are simply unrivalled.
Is this treasure really one of a kind?
Related words
Common phrases
unrivalled talent
unparalleled achievement
Common mistake
Learners often mistake this for a common adjective, but it is a formal idiom that does not fit into simple sentences about daily life. Avoid using it to describe people or things you encounter in routine situations, as it will sound unnatural and pretentious.
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.



