defection
Americannoun
-
desertion from allegiance, loyalty, duty, or the like; apostasy.
His defection to East Germany was regarded as treasonable.
- Antonyms:
- loyalty
-
failure; lack; loss.
He was overcome by a sudden defection of courage.
noun
Other Word Forms
Etymology
Origin of defection
1535–45; < Latin dēfectiōn- (stem of dēfectiō ), equivalent to dēfect ( us ) ( see defect) + -iōn- -ion
Explanation
Is your team so bad you have begun supporting a rival team? Then you're guilty of defection — the act of shifting your support to a new cause. Most people won't thank you for your defection. No matter how much you might believe in the new sports team, or political party, or whatever, defection is generally used as a critical term. Defection implies a lack of character — as you can tell by looking at its Latin roots, which come from the word defectionum, meaning "desertion, revolt, failure." Clearly, no one likes a defector.
Vocabulary lists containing defection
"Coming of Age in the Dawnland," Vocabulary from the historical excerpt
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My Brother Sam is Dead
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Mockingjay
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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.
Analysts say the Seoul government's broader push to ease tensions with Pyongyang may also have given it reason to avoid turning the POWs' defection into a public spectacle.
From Barron's ● Oct. 20, 2026
Confirmation of his arrest was swiftly followed by news of a Reform Senedd member's defection to Plaid Cymru.
From BBC ● Sep. 20, 2026
Most of Plaid Cymru's MSs - including some government ministers - were only told about the defection plan at their group meeting earlier in the day.
From BBC ● Sep. 20, 2026
A star dealmaker’s defection reveals two starkly different views of the legal world’s race for scale.
From The Wall Street Journal ● Sep. 13, 2026
They knew that his defection was real, and they worked around the clock to contain the fallout.
From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau
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Get a wordDefinitions 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.
