Find Antonyms

leakproof Antonyms

Opposite of leakproof

Pinning down the opposite of leakproof requires matching its exact sense, so the antonyms and opposite words below are paired with a clear adjective definition and ranked by contrast strength.
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• adjective (Context 1)

Designed or sealed to prevent liquid, gas, or confidential information from escaping or entering.

Usage Example

"She packed her soup in a leaky container so it would not spill inside her backpack."

Strongest
leaky
Strong
porous
permeable

Similar words to leakproof

Words similar to leakproof shift depending on context. Common synonyms include:

leaktight
watertight
airtight
seal
waterproof
hermetic
sealed
impervious
See all synonyms of leakproof

• Nearby Words

leak
leakage
leakless
leakproof
leaky
lean
leaning

Cite this Entry

Wordmom. (2026). Antonyms for Leakproof. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/leakproof
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