sterile
Americanadjective
-
free from living germs or microorganisms; aseptic.
Successful operations rely on timely delivery of the sterile surgical instruments needed for each procedure.
-
incapable of producing offspring; not producing offspring.
- Synonyms:
- unfruitful, infecund
- Antonyms:
- fertile
-
barren; not producing vegetation.
Attempts to cultivate the land have failed because of the sterile soil.
- Antonyms:
- fertile
-
Botany.
-
noting a plant in which reproductive structures fail to develop.
-
bearing no stamens or pistils.
-
-
not productive of results, ideas, etc.; fruitless.
-
lacking vitality, vibrancy, interest, etc..
Art can transform an otherwise sterile office into a happy, inspiring, and comforting space.
adjective
-
unable to produce offspring; infertile
-
free from living, esp pathogenic, microorganisms; aseptic
-
(of plants or their parts) not producing or bearing seeds, fruit, spores, stamens, or pistils
-
lacking inspiration or vitality; fruitless
-
economics (of gold) not being used to support credit creation or an increased money supply
-
Not able to produce offspring, seeds, or fruit; unable to reproduce.
-
Free from disease-causing microorganisms.
Other Word Forms
Etymology
Origin of sterile
First recorded in 1545–55; from Latin sterilis “barren, unfruitful”
Explanation
A sterile person can't have kids, and a sterile environment is bland and boring. In both cases, sterile means lifeless. When you hear about a sterile person, it means they can't have kids: sterile women can't get pregnant, and sterile men can't be fathers. But the concept of sterility applies to things, too. An empty, white room with nothing in it is sterile. And a surgeon's instruments better be sterile — meaning they're free from germs and bacteria.
Vocabulary lists containing sterile
The Handmaid's Tale
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!
Boy: Tales of Childhood
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!
The Red Pyramid
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.
Compounding pharmacies are pharmacies, you can’t get a drug without a prescription, certainly not a sterile injectable drug.
From Slate ● Oct. 6, 2026
For most of Sunday, police maintained a sterile zone between the two sides, while officers repeatedly called on protesters to disperse.
From BBC ● Sep. 28, 2026
During the 1950s, officials carried out one of the most successful biological control campaigns in history using a method known as the sterile insect technique.
From Science Daily ● Sep. 15, 2026
The first is the sky above the sterile lab in Montpellier, southern France, where the device -- part of a nanosatellite -- will soon be soaring.
From Barron's ● Sep. 9, 2026
I hugged him tight, his fur smelling like a mix of dogs and vet chemicals, pungent and sterile.
From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas
![]()
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.