Also found in: Thesaurus.
1. Without stain or blemish: a stainless reputation.
2. Resistant to stain or corrosion: stainless metal.
3. Made of a stainless material: a stainless teapot.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.