aggressor

noun

ag·​gres·​sor ə-ˈgre-sər How to pronounce aggressor (audio)
: one that commits or practices aggression

Examples of aggressor in a Sentence

Each country accused the other of being the aggressor. a group of smaller states had formed an alliance to deter potential aggressors
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.
Typically, on such charges, a defendant would settle to prevent going to trial, but Majors insisted on his innocence, and his attorney said Jabbari was the aggressor in the incident, even going so far as to file a cross-complaint against her, which the Manhattan DA’s office declined to prosecute. Rebecca Keegan, The Hollywood Reporter, 14 Mar. 2025 Eating a healthy diet rich in antioxidants, for example, can protect the skin from environmental aggressors. Audrey Noble, Vogue, 14 Mar. 2025 The eight shades of purples, pinks, and oranges are also packed with cherry oil, which protects lips from environmental aggressors with its antioxidants. Jennifer Hussein, Allure, 14 Mar. 2025 The risk is clear: that a truce collapses, likely due to Russian action, Trump incorrectly believes Ukraine is to blame for spoiling his peace, and Ukraine’s aid is again frozen, this time with a more vindictive edge as they have been deemed the aggressor. Nick Paton Walsh, CNN, 11 Mar. 2025 See All Example Sentences for aggressor

Word History

Etymology

borrowed from Latin, "attacker, assailant," from aggredī, adgredī "to approach, attack" + -tor, agent suffix — more at aggress

First Known Use

1585, in the meaning defined above

Time Traveler
The first known use of aggressor was in 1585

Browse Nearby Words

Cite this Entry

“Aggressor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aggressor. Accessed 28 Mar. 2025.

Kids Definition

aggressor

noun
ag·​gres·​sor ə-ˈgres-ər How to pronounce aggressor (audio)
: a person or country that attacks without reasonable cause

Medical Definition

aggressor

noun
ag·​gres·​sor ə-ˈgres-ər How to pronounce aggressor (audio)
: one who exhibits aggression

More from Merriam-Webster on aggressor

Last Updated: - Updated example sentences
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