Built so that liquid or gas cannot escape through its enclosure.
Reach for it when describing a verified containment feature, not a casual hope that a vessel will hold
Each leakproof container kept the medical samples secure during transport.
| everyday | |
|---|---|
| professional | |
| formal |
everyday
spillproof
Fits when ordinary tipping should not release the contents
Careful Spillproof may tolerate seepage and is a weaker claim than leakproof.
everyday
Fits when the barrier specifically excludes or contains water
Careful Watertight does not guarantee containment of oil, vapor, or pressurized gas.
professional
airtight
Fits when air exchange must be prevented
Careful An airtight enclosure is not automatically safe for every liquid or chemical.
professional
sealed
Fits when an opening or joint has been securely closed
Careful A sealed package may still leak if its material or seam fails.
formal
impermeable
Fits when the material itself does not let a substance pass
Careful Impermeability says little about lids, valves, and assembled joints.
formal
leak-resistant
Fits when reduced likelihood is supported but absolute prevention is not
Careful Leak-resistant deliberately stops short of the full leakproof claim.
leakproof container
A leakproof container protected the dry food through the river crossing.
leakproof seal
The technician checked every leakproof seal before opening the valve.
fully leakproof
Testing confirmed that the bottle remained fully leakproof after repeated drops.
Definitions and examples are written for this site. How words are chosen Updated
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