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Synonyms

stainless

American  
[steyn-lis] / ˈsteɪn lɪs /

adjective

  1. having no stain; spotless.

  2. made of stainless steel.

  3. resistant to staining, rusting, the corrosive effect of chemicals, etc.


noun

  1. flatware made of stainless steel.

  2. stainless steel.

stainless British  
/ ˈsteɪnlɪs /

adjective

  1. resistant to discoloration, esp discoloration resulting from corrosion; rust-resistant

    stainless steel

  2. having no blemish

    a stainless reputation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. stainless steel

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of stainless

First recorded in 1580–90; stain + -less

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.

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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.

Manganese is usually not viewed as a friend of stainless steel corrosion resistance.

From Science Daily • May 10, 2026

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

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

It will feature several of Gehry’s animal-themed sculptures, including a rarely seen stainless steel bear figure, on loan from the artist’s family.

From Los Angeles Times • Apr. 17, 2026

I press my back to the stainless steel cabinets and inch inward until I can duck into the hollow space beneath the grill.

From "The Sky at Our Feet" by Nadia Hashimi

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