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.
In a social media post on April 14, Zelenskyy said that Russia, as the aggressor in the war, should be forced into peace talks. Francesca Chambers, USA Today, 16 Apr. 2025 One need only note the widening acceptance of the absurd lie that Ukraine is at fault for the unprovoked Russian invasion of its land or that NATO has been the historical aggressor. Michael Miklaucic, Twin Cities, 5 Apr. 2025 The human aggressors in Princess Mononoke are greedy and misguided, but are also capable of great empathy. Dani Di Placido, Forbes.com, 31 Mar. 2025 Back then, the fiction that Russia wasn’t an aggressor or party to the conflict, along with insufficient pressure on Moscow in the form of sanctions or the provision of lethal military supplies to Ukraine, ultimately meant Minsk never addressed the root cause of the conflict. Clare Sebastian, CNN, 14 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 24 Apr. 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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