pugnacious

American  

[puhg-ney-shuhs] / pʌgˈneɪ ʃəs /

adjective

1. inclined to quarrel or fight readily; quarrelsome; belligerent; combative.

   Synonyms:

   bellicose, contentious, argumentative

   Antonyms:

   agreeable

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pugnacious British  

/ pʌɡˈneɪʃəs, pʌɡˈnæsɪtɪ /

adjective

1. readily disposed to fight; belligerent

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Other Word Forms

• pugnaciously adverb
• pugnaciousness noun
• pugnacity noun
• unpugnacious adjective
• unpugnaciously adverb

Etymology

Origin of pugnacious

First recorded in 1635–45; pugnaci(ty) (from Latin pugnācitās “combativeness,” equivalent to pugnāci-, stem of pugnāx combative (akin to pugil; pugilism ) + -tās -ty ² ) + -ous

Example Sentences

Even by the former’s standards, it was angry, pugnacious, and hence less effective.

From The Wall Street Journal • Feb. 25, 2026

“Diddy beat the Feds that boy a bad man!,” the pugnacious “In Da Club” artist said on Instagram.

From Los Angeles Times • Jul. 2, 2025

But Zitron established himself as one of the most pugnacious critics of Big Tech after he penned a 2023 newsletter about tech products’ drift from quality toward mindless growth.

From Slate • Feb. 2, 2025

John Prescott became a Labour frontbench spokesman in May 1979 and joined the shadow cabinet in 1983, gaining a reputation as a pugnacious and knowledgeable spokesman on transport.

From BBC • Nov. 21, 2024

Huxley was the most vocal and pugnacious of them all, and earned the nickname of Darwins bulldog.

From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman