contentious

adjective

con·​ten·​tious kən-ˈten(t)-shəs How to pronounce contentious (audio)
1
: likely to cause disagreement or argument
a contentious issue
2
: exhibiting an often perverse and wearisome tendency to quarrels and disputes
a man of a most contentious nature
contentiously adverb
contentiousness noun

Did you know?

If everyone has a bone to pick now and then, contentious types have entire skeletons. While English has plenty of words for people prone to fighting—combative and belligerent among them—contentious implies a fondness for arguing that others find particularly tedious or wearying. Thankfully, even the most contentious cranks and crabs among us have no cause to quibble over the history of the word contentious, as its origins are very clear: contentious comes (by way of Middle French) from the Latin adjective contentiōsus, meaning “persistent, obstinate, argumentative, or quarrelsome.”

Choose the Right Synonym for contentious

belligerent, bellicose, pugnacious, quarrelsome, contentious mean having an aggressive or fighting attitude.

belligerent often implies being actually at war or engaged in hostilities.

belligerent nations

bellicose suggests a disposition to fight.

a drunk in a bellicose mood

pugnacious suggests a disposition that takes pleasure in personal combat.

a pugnacious gangster

quarrelsome stresses an ill-natured readiness to fight without good cause.

the heat made us all quarrelsome

contentious implies perverse and irritating fondness for arguing and quarreling.

wearied by his contentious disposition

Examples of contentious in a Sentence

In the perpetual skirmish between science and religion, biological evolution is a contentious battle ground. Barry A. Palevitz, Skeptical Inquirer, July/August 1999
Creator Jim Davis had spent two years fine-tuning the contentious relationship between the grouchy cat, his milquetoast owner, Jon (Davis' pen-and-ink alter ego), and befuddled dog Odie—in a strip he'd thought would be called Jon. Beth Johnson, Entertainment Weekly, 19 June 1998
Historians, admittedly a contentious lot, have failed even to agree on what to call King Philip's War. Jill Lepore, The Name of War, 1998
My mental attitude when drinking is both contentious and malicious, and while in this mood and state I was the author of statements which I know to be wholly unfounded. Theodore Dreiser, The Titan, 1914
After a contentious debate, members of the committee finally voted to approve the funding. The dispute involves one of the region's most contentious leaders.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Elsewhere in the Bay Area, San Francisco Playhouse is wrapping up a one-person show that leads audiences to consider their feelings and beliefs about the profoundly contentious Israel-Gaza conflict, even though it’s mostly meant to be a personal story. Martha Ross, Mercury News, 7 Aug. 2025 Instead of a more contentious disagreement, which could have necessitated a final ruling from commissioner Roger Goodell, the two sides ultimately settled on an agreement to share the equity. Eben Novy-Williams, Sportico.com, 7 Aug. 2025 The organization said such a policy can stymie discussion of especially contentious topics and punish students for offensive but protected speech. Cate Charron, IndyStar, 6 Aug. 2025 Trump has met with Zelenskyy several times this year, including a contentious February meeting in Washington. Michelle L. Price, Chicago Tribune, 6 Aug. 2025 See All Example Sentences for contentious

Word History

Etymology

Middle English contenciose "quarrelsome," borrowed from Middle French & Latin; Middle French contencieux "subject to disagreement," borrowed from Latin contentiōsus "persistent, obstinate, argumentative, quarrelsome," from contentiō "exertion, competition, contention" + -ōsus -ous

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of contentious was in the 15th century

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Cite this Entry

“Contentious.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/contentious. Accessed 20 Aug. 2025.

Kids Definition

contentious

adjective
con·​ten·​tious kən-ˈten-chəs How to pronounce contentious (audio)
: inclined to argue
contentiousness noun

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