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See more synonyms for aggressor on Thesaurus.com
  1. a person, group, or nation that attacks first or initiates hostilities; an assailant or invader.
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Origin of aggressor

1670–80; < Late Latin, Latin aggred- (stem of aggredī to attack; see aggress) + -tor -tor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for aggressor

trespasser, assailant, invader, intruder, instigator, raider, initiator, provoker

Examples from the Web for aggressor

Contemporary Examples of aggressor

Historical Examples of aggressor

Word Origin and History for aggressor


1670s, from Latin aggressor, agent noun from aggredi (see aggression).

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Online Etymology Dictionary, © 2010 Douglas Harper