ci5 si6 ji4 fei1似是而非
Jyutpingci5 si6 ji4 fei1
Yalechíh sih yìh fēi
Definition
Apparently correct or true, but actually wrong; specious or misleading.
colloquialdescriptionscommunication
How it's used
Used to describe arguments or theories that sound logical or correct at first glance but fall apart under scrutiny. It carries a slightly formal or intellectual tone despite being used in everyday speech to critique someone's reasoning. It is often employed when someone is being deliberately misleading or is simply confused about the facts.
Examples
The logic he uses is plausible but actually flawed, making it hard to convince anyone.
This explanation sounds right but is actually wrong; are you trying to trick me?
Related words
Common phrases
the argument is plausible but flawed
the explanation sounds right but is actually wrong
Common mistake
Learners often mistake this for meaning 'similar' or 'resembling', but it specifically refers to a logical fallacy or a deceptive appearance of correctness. Do not use it to describe physical resemblance between two people or objects.
Grammar color guide
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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.



