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.
Any participation of Russian gymnasts in international competitions, regardless of athletes' presence of a status of neutrality, is threatened by using such participation to demonstrate recognition of the aggressor country as a civilized world. Caroline Price, Forbes.com, 14 Sep. 2025 When force starts, support for the aggressor must end, and condemnation must begin. Agustina Vergara Cid, Oc Register, 13 Sep. 2025 This is the same president who habitually confuses aggressor and victim in the war between Russia and Ukraine. Andreas Kluth, Twin Cities, 11 Sep. 2025 The laws of neutrality don’t distinguish between aggressor and victim, because those distinctions are not always clear-cut. Robert Kagan, The Atlantic, 10 Sep. 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 17 Sep. 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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