fei2 ji4 so2 si1匪夷所思
Jyutpingfei2 ji4 so2 si1
Yaleféi yìh só sī
Definition
Unbelievable, bizarre, or unimaginable; extremely extraordinary or borderline impossible.
colloquialdescriptions
How it's used
This idiom carries a strong sense of disbelief or shock, often used when someone's behavior or a situation defies common logic. While it is a four-character idiom, it is frequently used in spoken Cantonese to emphasize that something is beyond the realm of normal human expectation. It is more intense than simply saying something is strange or weird.
Examples
I can't believe he actually did that, it's just bizarre.
This result is completely beyond imagination, I never saw it coming.
Related words
Common phrases
simply unbelievable
makes one find it hard to believe
Common mistake
Learners often mistake this for a simple adjective like strange, but it implies a level of impossibility or absurdity that makes it unsuitable for minor inconveniences or everyday oddities.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.



