waterproof

Synonyms for waterproof

adj impervious to water

adjective. impenetrable

adjective. watertight

verb. make airtight

verb. make airtight

1725, from water (n.1) + proof. The verb is first recorded 1843. Related: Waterproofed; waterproofing.

I remember shirts and waterproof boots were mentioned by Bagshaw.

And it must be cased in waterproof, to keep it from getting wet and heavy.

Yes, sir, it is a sort of waterproof cloth, made with Indian rubber.

The troops had made up little tents with their waterproof sheets.

For the first time, I realized the virtue of his waterproof silk shirt.

"Got him first time," said the sergeant, removing his waterproof cape.

I must lend her my waterproof, only she appears already to be water-proved!

An umbrella or a waterproof cape would be fatal to the whole effect.

Make it waterproof at the top, and have it open at the bottom.

But you are not dressed right; you should have waterproof boots.