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rancorous

American  
[rang-ker-uhs] / ˈræŋ kər əs /

adjective

  1. full of or showing rancor.


Other Word Forms

Etymology

Origin of rancorous

First recorded in 1580–90; rancor + -ous

Explanation

The adjective rancorous comes in handy when you're describing someone's bitter grudge, like the attitude of your cousin who still won't speak to you after the April Fool's Day prank you played four years ago. A story can be rancorous, if it's full of resentment, and so can an argument, if it's particularly bitter and angry. The word rancorous can be traced back to the Latin word rancere, which means "to stink." This in turn led to rancorem, "bitterness or rancidness." When you speak to your arch enemy and your words are so angry and bitter that they almost stink, go ahead and describe them as rancorous.

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Vocabulary lists containing rancorous

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.

See Examples For:

The Artemis II astronauts returned from the moon Friday and rejoined us on a rancorous, feuding Earth.

From The Wall Street Journal Apr. 11, 2026

It can turn a rancorous conversation into a more soulful and forgiving one.

From MarketWatch Mar. 5, 2026

That setback added to rancorous divisions among member states over the deal's impact on European farmers, who remained deaf to the EU's arguments and staged months of tractor-mounted protests against the accord.

From Barron's Jan. 28, 2026

Chris Eubank Jr narrowly beat bitter foe Conor Benn as one of Britain's most rancorous and long-running boxing rivalries lived up to the hype at London's Tottenham Hotspur Stadium.

From BBC Apr. 26, 2025

“You buried the elf,” he said, sounding unexpectedly rancorous.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

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