tarnish
Americanverb (used with object)
verb (used without object)
-
to grow dull or discolored; lose luster.
-
to become sullied.
noun
-
a tarnished coating.
-
tarnished condition; discoloration; alteration of the luster of a metal.
-
a stain or blemish.
verb
-
to lose or cause to lose the shine, esp by exposure to air or moisture resulting in surface oxidation; discolour
silver tarnishes quickly
-
to stain or become stained; taint or spoil
a fraud that tarnished his reputation
noun
Other Word Forms
- antitarnish adjective
- antitarnishing adjective
- nontarnishable adjective
- nontarnished adjective
- nontarnishing adjective
- tarnishable adjective
- tarnisher noun
- untarnishable adjective
- untarnished adjective
- untarnishing adjective
Etymology
Origin of tarnish
1590–1600; < Middle French terniss-, long stem of ternir to dull, deaden, derivative of terne dull, wan < Germanic; compare Old High German tarni, cognate with Old Saxon derni, Old English dierne hidden, obscure; -ish 2
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.
While even reliable AI detectors can produce false results, researchers say a crop of fraudulent tools has emerged online, easily weaponized to discredit authentic content and tarnish reputations.
From Barron's • Mar. 30, 2026
For better or worse, the government can tarnish a defendant’s reputation by releasing investigative materials that make them look guilty in the absence of a guilty verdict.
From Slate • Feb. 26, 2026
The disclosures threaten to tarnish the image of the British monarchy.
From The Wall Street Journal • Feb. 17, 2026
Wealthier silver sellers have another tarnish, because they could be paying more in taxes.
From MarketWatch • Dec. 31, 2025
It's nearly black with tarnish, but I prefer it that way; it draws less attention.
From "An Ember in the Ashes" by Sabaa Tahir
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.
