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acrimonious

American  
[ak-ruh-moh-nee-uhs] / ˌæk rəˈmoʊ ni əs /

adjective

  1. caustic, stinging, or bitter in nature, speech, behavior, etc..

    an acrimonious answer; an acrimonious dispute.


acrimonious British  
/ ˌækrɪˈməʊnɪəs /

adjective

  1. characterized by bitterness or sharpness of manner, speech, temper, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of acrimonious

From the Medieval Latin word ācrimōniōsus, dating back to 1605–15. See acrimony, -ous

Explanation

Locked in a mean-spirited, bitter argument? That's an acrimonious situation that might result in fists flying unless you and your opponent can cool down. If you're familiar with the adjective acrid, which means "having a strongly unpleasant taste or smell," you might guess that acrimonious probably refers to something unpleasant, too. And you'd be right. Until the mid-nineteenth century, acrimonious meant the same thing as acrid. But while acrid is still most commonly used in a literal sense (as in "an acrid odor"), acrimonious is now used to describe things like angry and bitter speeches or debates. Both words come to English from the Latin word acer, meaning "sharp." Keep sharp objects locked up if a showdown gets too acrimonious.

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Vocabulary lists containing acrimonious

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.

Indeed, the question “Who is a Jew?” has defied easy answers for centuries, and has often led to acrimonious infighting.

From The Wall Street Journal • Apr. 26, 2026

According to a March 17 arrest warrant obtained by People, Hochstein and Glidden allegedly placed a recording device in Leonard Hochstein’s Mercedes-Benz following an acrimonious split back in March 2023.

From Los Angeles Times • Apr. 16, 2026

The ending, which I won’t spoil here, has become a lightning rod of controversy that cannot be destroyed, no matter how much acrimonious electricity it attracts.

From Salon • Feb. 23, 2026

The 20-team tournament had been overshadowed by an acrimonious political build-up.

From Barron's • Feb. 10, 2026

“Let me handle him,” urged a hatchet-faced man with sunken acrimonious eyes and a thin, malevolent mouth.

From "Catch-22" by Joseph Heller

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