Thesaurus.com
Dictionary.com
Showing results for in arms.
Definitions

in arms

ADJECTIVE
militant
Synonyms
STRONGEST
assertive bellicose belligerent militaristic vigorous warring
STRONG
active fighting martial military offensive
WEAK
assertory combating contending contentious embattled gladiatorial pugnacious pushy quarrelsome scrappy self-assertive truculent up in arms warlike
Antonyms
WEAK
compliant peaceful peaceloving submissive tolerant

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.

Adding another layer of complexity, is the onus that places on witness testimony from so-called "brothers in arms".

From BBC • Apr. 8, 2026

“This world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children.”

From Salon • Apr. 7, 2026

Now, a proposed cap would pump the brakes—and students are up in arms.

From The Wall Street Journal • Apr. 3, 2026

Farmers across Europe remain unconvinced and are up in arms, including in Spain where they staged a protest against the deal in Madrid earlier this month.

From Barron's • Feb. 27, 2026

Next to stand was Mentor, comrade in arms of the prince Odysseus, an old man now.

From "The Odyssey" by Homer