leakproof

[ leek-proof ]

adjective

1. designed to prevent leaking:

   a leakproof bottle.

Word History and Origins

Origin of leakproof¹

First recorded in 1925–30; leak + -proof

Example Sentences

Stanley’s various size, color and design tumblers are uniformly marketed as durable, leakproof and insulated, keeping drinks hot or cold for hours.

From Seattle Times

Second, if you’re ever on the cusp of leaving an event but don’t want to abandon your beverage, I recommend a leakproof Mason jar.

From Washington Post

Last May, to the astonishment of many, Politico published an authentic draft of the usually leakproof Supreme Court’s majority opinion overturning Roe v.

From Washington Post

Plus, it has spots to hitch side bags, water bottles and carabiners, and even the zipper is leakproof.

From Los Angeles Times

The sewers in Morris Park, built in 1916, are made of interlocking vitrified block, which is designed to be leakproof and was deemed highly modern when the Bronx borough president ordered them installed, Aggarwala said.

From Seattle Times