jat6 san1 jyut6 ji6日新月異日新月异
Jyutpingjat6 san1 jyut6 ji6
Yaleyaht sān yuht yih
Definition
Changing or improving rapidly day by day, especially of fashion or technology.
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How it's used
This idiom is a formal four character expression that is frequently used in both written and spoken Cantonese to describe rapid progress or innovation. While it sounds slightly literary, it is perfectly natural to use in professional settings or when discussing modern advancements in technology or society. It carries a sense of constant, positive evolution rather than just random change.
Examples
Technology is changing so rapidly that many old things are soon phased out.
Don't you think fashion trends have been changing incredibly fast these past few years?
Related words
Common phrases
technology is changing rapidly
development is changing rapidly
Common mistake
Learners often mistakenly use this to describe personal changes or simple shifts in mood, but it is specifically reserved for large scale developments like technology, industry, or societal trends.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- NegationHow to say no, not, didn't, and don't in Cantonese. The four main negation words and when to use each one.
- Numbers and moneyCounting, talking about money, and asking how much things cost. Includes the two words for two and the everyday words for dollars and cents.
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.



