as in invader
one that starts armed conflict against another especially without reasonable cause
a group of smaller states had formed an alliance to deter potential aggressors
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Recent Examples of aggressor
Phillips’ attorney, Ivan Rodriguez, has sharply disputed the prosecution’s version of events, telling KTVU that his client was not the aggressor and that video evidence shows the officer initiated physical contact.
—
Stepheny Price, FOXNews.com, 18 Mar. 2026
Most people initially become aware of the reptiles by hearing their rattles, which the snakes use to try to scare off aggressors or to distract prey.
—Gary Robbins, San Diego Union-Tribune, 18 Mar. 2026
Her journey towards long-lasting sobriety aligns with her unfolding detective work to find her anonymous aggressor.
—Courtney Howard, Variety, 15 Mar. 2026
Hybrid attacks are a cocktail of destabilization and deniability, unsettling populations and creating an impression of a strong aggressor and a powerless target.
—Liam Denning, Bloomberg, 12 Mar. 2026
See All Example Sentences for aggressor
Stepheny Price, FOXNews.com, 18 Mar. 2026
Most people initially become aware of the reptiles by hearing their rattles, which the snakes use to try to scare off aggressors or to distract prey.
—Gary Robbins, San Diego Union-Tribune, 18 Mar. 2026
Her journey towards long-lasting sobriety aligns with her unfolding detective work to find her anonymous aggressor.
—Courtney Howard, Variety, 15 Mar. 2026
Hybrid attacks are a cocktail of destabilization and deniability, unsettling populations and creating an impression of a strong aggressor and a powerless target.
—Liam Denning, Bloomberg, 12 Mar. 2026
See All Example Sentences for aggressor
Recent Examples of Synonyms for aggressor
Noun
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The immune system’s magic is to remember prior exposure to pathogens or vaccines and mount a faster, bigger response on seeing the same invader a second time.—
Marc Lipsitch,
STAT,
30 Mar. 2026
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But some of the worst invaders are actually noxious weeds, which can be directly harmful to humans, livestock, pets, and wildlife.—
Natalie Krebs,
Outdoor Life,
26 Mar. 2026
Noun
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All that maritime commerce also attracted its fair share of Viking raiders from Scandinavia.—
Andrew Paul,
Popular Science,
25 Mar. 2026
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Give me raiders of the lost past, any day, and forgive them their lack of footnotes.—
Anthony Lane,
New Yorker,
22 Mar. 2026
Noun
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These determine whether technological acceleration remains a source of broad benefit or becomes a source of brittleness vulnerable to attackers, accidents, or concentrated power.—
Big Think,
Big Think,
31 Mar. 2026
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Running the latest version of Windows and your web browser reduces the chances of attackers exploiting older system behaviors or vulnerabilities.—
Kurt Knutsson,
FOXNews.com,
31 Mar. 2026
Cite this Entry
“Aggressor.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/aggressor. Accessed 4 Apr. 2026.
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