Translation guide
Describes something that is completely sealed against water, or an argument, plan, or case that has no weaknesses or loopholes.
Describing a container, compartment, or seal that does not allow water to enter or escape.
General term for waterproof or water-resistant. Often used for watches, clothing, and electronics.
This watch is watertight.
Specifically means watertight, often used in engineering or technical contexts for compartments or seals.
Literally 'water does not enter'. A simple, natural way to describe something as watertight in everyday speech.
Means hermetically sealed or airtight, but can imply watertightness when context is about liquids.
Describing a case, alibi, argument, or plan that has no weaknesses or loopholes.
Do not translate 'watertight' literally as 水が漏れない (water doesn't leak) for arguments or plans. Use the metaphorical expressions provided.
The ship's watertight compartments prevented flooding.
This container is made to be watertight.
密閉容器に入れて保存してください。
Please store it in a watertight container.
Means perfect or flawless. Commonly used for plans, arguments, or alibis that cannot be challenged.
His alibi is watertight.
Literally 'has no gaps'. Very natural for describing a watertight argument or defense.
His logic is watertight.
Means 'no room to take advantage of'. Emphasizes that there is no loophole to exploit.
The contract is watertight.
Means 'no fault to find'. Used for something that is beyond criticism, like a watertight case.
His argument is watertight.
Means solid, sound, or reliable. Can describe a watertight plan or strategy.
Let's make a watertight plan.