seoi2 kau1 jau4水勼油

Jyutpingseoi2 kau1 jau4
Yaleséui kāu yàuh

Definition

Incompatible, mutually exclusive, or completely unable to mix or get along with each other.

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How it's used

Literally describing the physical inability of oil to mix with water, this expression is used metaphorically to describe people or ideas that are fundamentally incompatible. It carries a strong sense of permanent opposition where no compromise is possible. You will often hear it used when discussing personality clashes or conflicting business strategies.

Examples

These two proposals are incompatible and cannot be reconciled at all.

Common phrases

personalities are like oil and water

Common mistake

Do not use this to describe things that are just slightly different or temporarily at odds. It implies a deep, inherent mismatch that makes cooperation impossible.

Grammar color guide

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