waterproof

CEFRB1

/ˈwɔːtəˌpruːf/

adjective · verb

Türkçe translations

Translating…

In plain English

01
adjective
Not allowing water to pass through or cause damage.
02
adjective
Extra detail
Incapable of failing; unassailable.

Examples

The young campers were kitted out with new waterproof jackets.
My camera is waterproof.

At a glance

Sits at B1 on the CEFR scale

Senses: 5
Parts of speech: 2
Citations: 5
Synonyms: 2

Also pronounced

/ˈwɑ(ː)t̬ɚ-/
/ˈwɔt̬ɚˌpruf/

Deep Dive

adjective

Extra meanings

Made of or covered with material that doesn't allow water in.
Resistant to the effects of water.

verb

Extra meaning

To make waterproof or water-resistant.

More examples

In context

This watch is waterproof.
The only waterproof plan and the one increasingly adopted by leading trades is the consolidation of the interests of all parties in a scheme of amalgamation.
Unless you have a 100 percent waterproof plan to defraud insurance companies, I would suggest you don't do it.

Quick test

Two questions on this entry. Nothing is scored.

Question 1 · Quick check

The rain jacket is completely blank, so it keeps me dry even in heavy rain.

Practise this properly in the app, where the word comes back before you forget it.

Nearby

Citations

The word in print, with each source given in full.

The only waterproof plan and the one increasingly adopted by leading trades is the consolidation of the interests of all parties in a scheme of amalgamation.
1931, The British Clay Worker
The captain did a safety drill. This covered where the emergency position-indicating radio beacon (EPIRB) was located, how to make a mayday call, and where the fire extinguishers were. A crew member demonstrated how to put on an immersion suit. These survival suits are waterproof full-body garments with a hood and integral three-finger gloves and boots. They are bulky and hard to get on but far more likely to save your life in cold water than a lifejacket.
2025 October 21, Rose George, “‘I knew in my head we were dying’: the last voyage of the Scandies Rose”, in The Guardian
The dawn of the oil age was fairly recent. Although the stuff was used to waterproof boats in the Middle East 6,000 years ago, extracting it in earnest began only in 1859 after an oil strike in Pennsylvania. The first barrels of crude fetched $18 (around $450 at today’s prices).
2013 August 3, “Yesterday’s fuel”, in The Economist, volume 408, number 8847
Especially within an international framework, guarding this process is of the utmost importance. The eyes of the world are focussed on the action at hand and demand a waterproof plan and execution.
2001, W. A. M. van Dijk, J. L. Hovens, Netherlands. Koninklijke Marechaussee, Arresting war criminals
Unless you have a 100 percent waterproof plan to defraud insurance companies, I would suggest you don't do it.
2013, Barry Davies, Soldier of Fortune Guide to How to Disappear and Never Be Found, Skyhorse Publishing, Inc., →ISBN

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Origin

adjective

From water + -proof. Compare West Frisian wetterproef (“waterproof”), Dutch waterproef (“waterproof”).

Deep Dive

adjective

verb

More examples

Related

Quick test

The rain jacket is completely blank—, so it keeps me dry even in heavy rain.

Nearby

Origin

adjective

The rain jacket is completely blank, so it keeps me dry even in heavy rain.