aggressor

noun

ag·​gres·​sor ə-ˈgre-sər How to pronounce aggressor (audio)
Synonyms of aggressornext
: 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.
The goal came in the 14th minute and Colombia remained the aggressor until the end. Blair Kerkhoff, Kansas City Star, 4 July 2026 Although their offense isn't the caliber of France and Norway, Belgium is talented and should be the aggressor in this match. David Troy Outkick, FOXNews.com, 1 July 2026 But the show still makes its point that the world of this play has narcissistic aggressors and flailing victims, and those who fall into both of those categories. Chris Jones, Chicago Tribune, 26 June 2026 When sacred places are bombed, when clergy are silenced, when believers are tortured, when religious freedom is crushed, the aggressor attempts to extinguish the living conscience of a nation. Mark Temnycky, Forbes.com, 25 June 2026 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 5 Jul. 2026.

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

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