Leakproof

//ˈliːkpɹuf// adj, verb

adj, verb ·Uncommon ·Advanced level

Definitions

Verb
  1. 1
    To make resistant to leakage. transitive
Adjective
  1. 1
    Resistant to leaks; hermetic, sound; as of a dry cell battery.

    "1904, Institution of Mining and Metallurgy (Great Britain), Bulletin, Institution of Mining and Metallurgy (Great Britain) (1904), p. 22, "In mining work difficult laying conditions, limited space, and movements of the ground, all combine to make the installation of a leakproof main with ordinary joints a very difficult matter.""

Adjective
  1. 1
    not subject to leaks wordnet

Synonyms

All synonyms
tightairtightballproofbombproofbulletproofburglarproof

Example

More examples

"1904, Institution of Mining and Metallurgy (Great Britain), Bulletin, Institution of Mining and Metallurgy (Great Britain) (1904), p. 22, "In mining work difficult laying conditions, limited space, and movements of the ground, all combine to make the installation of a leakproof main with ordinary joints a very difficult matter.""

Etymology

From leak + -proof.

Related phrases

dry cell

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.