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

Revelshine’s leakproof, quick-chilling aluminum bottle is so well-built, testers used it in the backcountry after they’d drained it.

From Outside Online

These stackable dishes come with three sections and leakproof tops.

From Popular-Science

This rain fly is made from durable ripstop waterproof nylon, has leakproof taped seams, reinforced stitching in vulnerable areas, and multiple reviewers state that it can withstand heavy downpours.

From Outside Online