Speak and write with confidence.

To help you avoid using the same word too repetitively, redundantly, recurrently, incessantly, etc., etc.

Why synonyms can be useful

Your writing can sound boring if you continually keep repeating the same words. When you create sentences, you can make them more interesting by using words that mean the same as the word you are speaking about. This allows you to add flavor to your writing.

In order to make language a lot more expressive and interesting you should try to vary the words you use as often as you can.

Synonyms for (adjective) impervious

Synonyms: imperviable, impervious Definition: not admitting of passage or capable of being affected Usage: a material impervious to water; someone impervious to argument

Hypernyms: fast Definition: resistant to destruction or fading Usage: fast colors

Hypernyms: acid-fast Definition: not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis)

Hypernyms: colorfast Definition: having color that is resistant to fading or running

Hypernyms: greaseproof Definition: resistant to penetration by grease or oil or wax Usage: greaseproof wrapping paper

Hypernyms: moth-resistant, mothproof Definition: resistant to damage by moths

Hypernyms: proof Definition: (used in combination or as a suffix) able to withstand Usage: temptation-proof; childproof locks

Hypernyms: resistant Definition: impervious to being affected Usage: resistant to the effects of heat; resistant to persuasion

Hypernyms: corrosion-resistant Definition: impervious to corrosion Usage: he was a great believer in the corrosion-resistant qualities of cast iron

Hypernyms: rot-resistant Definition: resistant to rotting

Hypernyms: run-resistant, runproof, ladder-proof Definition: (of hosiery) resistant to runs or (in Britain) ladders

Hypernyms: soundproof Definition: impervious to, or not penetrable by, sound Usage: a soundproof room