Dictionary.com
Thesaurus.com
Showing results for defector. Search instead for defensor.
Synonyms

defector

American  
[dih-fek-ter] / dɪˈfɛk tər /

noun

  1. a person who defects from a cause, country, alliance, etc.


Other Word Forms

  • nondefector noun
  • redefector noun

Etymology

Origin of defector

1655–65; < Latin dēfector renegade, rebel, equivalent to dēfec- (variant stem of dēficere to become disaffected, revolt, literally, to fail; see defect) + -tor -tor

Explanation

A person who quits something, despite a perceived duty or obligation, is a defector. If you abandon the Boston Red Sox to root for the New York Yankees instead, your fellow Bostonians will consider you a defector. In politics, defectors abandon their home countries and claim allegiance to another. A person can only be a defector if the first state forbids such a change and considers it illegal or illegitimate, as the government of North Korea does when one of its citizens leaves the country. Abandoning a military post also makes someone a defector. In your life, you're more likely to be considered a defector (by some) if you change political parties or stop being a vegetarian.

Keep Reading on Vocabulary.com

Vocabulary lists containing defector

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.

Mr. Magyar, a defector from Fidesz, campaigned hard on the economy, which grew a mere 0.4% in 2025.

From The Wall Street Journal • Apr. 12, 2026

The most notable defector, Congresswoman Marjorie Taylor Greene of Georgia, said at a press conference with Epstein survivors on Tuesday that the saga had "ripped Maga apart".

From BBC • Nov. 18, 2025

"They pleaded with the interviewer to promise she would return to bring them to the South," said Jang, himself a North Korean defector.

From Barron's • Nov. 2, 2025

Dick’s characters appear and disappear amid a nearly incomprehensible plot about a Nazi defector who tries to warn the Japanese of an impending German attack.

From Salon • May 17, 2025

As word spread in Seoul of his birth in and escape from a no-exit labor camp, he began to meet many of the South’s leading human rights activists and heads of defector organizations.

From "Escape from Camp 14: One Man's Remarkable Odyssey from North Korea to Freedom in the West" by Blaine Harden