stainless
Americanadjective
-
having no stain; spotless.
-
made of stainless steel.
-
resistant to staining, rusting, the corrosive effect of chemicals, etc.
noun
-
flatware made of stainless steel.
adjective
-
resistant to discoloration, esp discoloration resulting from corrosion; rust-resistant
stainless steel
-
having no blemish
a stainless reputation
noun
Other Word Forms
Etymology
Origin of stainless
Explanation
If an object is stainless, it is clean or resistant to discoloration. When a person is described with the adjective stainless, it means that they are exemplary, or extremely good. If you have any silver-colored appliances in your kitchen, they're probably stainless steel, specially formulated so they won't discolor or corrode. Most everyday spoons and forks are stainless steel as well. If someone refers to your sister's stainless reputation, on the other hand, he is implying that everyone thinks of her as well-behaved, almost saintly. This kind of stainless has been used since the 16th century; stainless steel wasn't invented until 1917.
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.
SS-H2 stands out because it attacks the problem not only with a coating or catalyst, but with a new alloy design strategy that changes how stainless steel protects itself.
From Science Daily • May 10, 2026
Other recent work has explored stainless steel based electrodes with protective catalytic layers, including NiFe based coatings and Pt atomic clusters, to improve durability in natural seawater.
From Science Daily • May 10, 2026
Metals executives say nickel miners there, who get most of their sulfur from the Middle East, have started to dial back production of the metal that is used to make electric-vehicle batteries and stainless steel.
From The Wall Street Journal • May 9, 2026
But also literally: my desk is a repurposed stainless steel prep table, set beside the stove, facing a window that’s often full of light.
From Salon • May 5, 2026
She led us to the right, then the left, through a corridor of stainless steel like some kind of air shaft, and we arrived back in the Roman tile room with the fountain.
From "The Battle of the Labyrinth" by Rick Riordan
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.
