resistant
Americanadjective
noun
adjective
-
characterized by or showing resistance; resisting
-
-
impervious to the action of corrosive substances, heat, etc
a highly resistant surface
-
( in combination )
a heat-resistant surface
-
noun
Other Word Forms
Etymology
Origin of resistant
1590–1600; < Middle French resistant, present participle of resister to resist; see -ant
Explanation
Being resistant means to be immune or impervious to something. A vest that's resistant to bullets is bullet-proof. Anything resistant has a certain power — specifically, the power to resist or fight off — something else. This word is often used medically, like when someone is resistant to a virus: that means they can't get the virus. You can also be resistant to someone's jokes, meaning they can't make you laugh. A raincoat should be resistant to water. If it's not resistant, that's a pretty bad raincoat. All resistant things are like a shield that something can't get through.
Vocabulary lists containing resistant
"Harbor Me" by Jacqueline Woodson
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Content Summary 4.2: Columbian Exchange and Atlantic Slavery
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
"Roller Girl" by Victoria Jamieson
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Actors, writers, production staff and movie fans are still resistant to the overuse of AI and defining when and where it is acceptable, so studios are treading lightly, said AI film studio CEO Mooser.
From Los Angeles Times ● Jul. 26, 2026
"Adapt or fail" is Ambrositsch's stark conclusion, which has led her to plant different varieties more resistant to the heat, and to change how she treats the soil.
From Barron's ● Jul. 26, 2026
APOE2 neurons also appeared to be more resistant to senescence.
From Science Daily ● Jul. 24, 2026
Cyclospora is resistant to chemical disinfection, and using these products could introduce other hazards.
From The Wall Street Journal ● Jul. 23, 2026
By a process of genetic selection, the insects are developing strains resistant to chemicals.
From "Silent Spring" by Rachel Carson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
