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Leakproof has 34 synonyms. The top synonyms for leakproof are watertight, hermetic, airtight, tight, proof, punctureproof, weatherproof, soundproof and 26 more. Another word for leakproof is watertight. Browse the full list below.
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| Random | DefinitionA common synonym for leakproof is watertight. Other synonyms include hermetic, airtight, tight, proof.
Leakproof has 34 synonyms listed on Thesaurasize.
(adj): Resistant to leaks; hermetic, sound; as of a dry cell battery
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