mismatch

1 of 2

noun

mis·​match ˈmis-ˌmach How to pronounce mismatch (audio)
plural mismatches
: a faulty or unsuitable match
New England plays St. Louis in Super Bowl XXXVI this evening, and on the face of it, this game is a mismatch, a blowout waiting to happen.William C. Rhoden
She is blood type O, and the donor heart and lungs she received in the first operation were blood type A. That mismatch triggered rejection by her immune system.Dan Vergano

mismatch

2 of 2

verb

mis·​match ˌmis-ˈmach How to pronounce mismatch (audio)
mismatched; mismatching

transitive verb

: to match (two people or things) wrongly or unsuitably
Let's say that you are afraid of boring your audience. One cause is mismatching the audience's need and the level of detail you provide.Liz Reyer

Examples of mismatch in a Sentence

Recent Examples on the Web
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Noun
This persistent mismatch has fueled a serious debate, leaving us wondering if our understanding of dark matter, or perhaps galaxy formation itself, is fundamentally off. Paul Sutter, Space.com, 20 Apr. 2026 Bridges has happily accepted the schematic change, which consists of him exploiting mismatches, rebounding, and recognizing when to step up versus defer to teammates. Roderick Boone, Charlotte Observer, 17 Apr. 2026
Verb
Other dec-aura crimes include mismatched light temperatures. Katherine McLaughlin, Architectural Digest, 22 Apr. 2026 Switching mismatched pots for containers in similar colors or materials instantly upgrades the look of a space without changing a single plant. Lauren Jarvis-Gibson, Charlotte Observer, 21 Apr. 2026 See All Example Sentences for mismatch

Word History

First Known Use

Noun

1606, in the meaning defined above

Verb

1582, in the meaning defined above

Time Traveler
The first known use of mismatch was in 1582

Browse Nearby Words

Cite this Entry

“Mismatch.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mismatch. Accessed 23 Apr. 2026.

Kids Definition

mismatch

verb
mis·​match
(ˈ)mis-ˈmach
: to match unsuitably or badly
mismatch noun

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