leakproof

/ˈlikpruf/
adjective
  1. Made so that liquid or gas cannot pass through; resistant to leaking.
    • I bought a leakproof travel mug so coffee wouldn't spill in my car.
    • The leakproof container kept the soup fresh during the long trip.
    • All the pipes in the new building are leakproof to prevent water damage.
Antonyms
What does "leakproof" mean? | whatsthatwordmean | whatsthatwordmean