Vocapedia
Log inTry for Free

Looking up...

Explore

  • Words of the Year
  • Recent Lookups
  • Community Collections
  • How to Say

Dictionaries

  • English
  • Vietnamese
  • Japanese
  • Chinese
  • Spanish
  • French
  • Korean
  • German
  • Hindi
  • Italian

MY LEARNING

  • My Dictionary
  • My Collections
  • Reviews

Resources

  • Learning Resources
  • How It Works
  • Study Guides
  • Language Tips
  • FAQ
  • Getting Started
  • For Individuals
  • For Teachers

Community

  • Forum
  • Blog
  • Help Center
  • Partnerships

About

  • About Vocapedia
  • Contact Us
  • Feedback

Legal

  • Terms of Use
  • Privacy Policy
  • Cookie Policy
  • Accessibility
  • GDPR Compliance
© 2026 Vocapedia. All rights reserved.
  1. Trang chủ /
  2. Từ điển /
  3. English Dictionary /
  4. aggressor

aggressor

/əˈɡrɛsər/
attacker

The aggressor launched an unprovoked attack on the neighboring country.

The aggressor refers to the party that initiated the hostile action without justification.


formal

A person or country that initiates harmful or violent actions against another.

The UN condemned the aggressor for violating international law.

The aggressor is identified as the party responsible for starting the conflict.

In the debate, she accused her opponent of being the aggressor in the argument.

The aggressor is the one who started the confrontation or dispute.

Often used in legal, political, or military contexts to describe the instigator of conflict.

Collocations

primary aggressorthe main party responsible for initiating aggressionunprovoked aggressoran attacker who started violence without causeidentify the aggressorto determine who started a conflict

Synonyms

attackerinvaderperpetratoroffenderassailant

Antonyms

defendervictimpeacemaker

Pro Tip

Context Matters

Use 'aggressor' when discussing serious conflicts, wars, or legal disputes. It is not suitable for everyday disagreements (e.g., 'He was the aggressor in the argument' is acceptable but formal).

Gold Rule

Avoid Overuse

Reserve 'aggressor' for significant or violent conflicts. Do not use it for minor disputes or playful arguments.

Word Origin

From Latin *aggressor*, meaning 'one who attacks,' derived from *aggressus*, past participle of *aggredi* ('to approach, attack'), combining *ad-* ('to') and *gradi* ('to step'). The word entered English in the 16th century via Old French *agresseur*.

Usage Notes

Commonly used in formal contexts such as law, politics, or military analysis. Avoid using it casually to describe minor conflicts, as it implies significant aggression or hostility.

Word Breakdown

aggress-
to approach or attack
root
+
-or
a person or thing that performs an action
suffix
English Dictionary
Xem thêm từ English→English →

Tiến độ học tập

Theo dõi hành trình học tập của bạn!

• Lưu từ để xây dựng vốn từ vựng

• Theo dõi chuỗi ngày học hàng ngày

• Nhận nhắc nhở ôn tập cá nhân hóa

• Xem thống kê từ đã học

Đăng nhập để truy cập tính năng nâng cao và theo dõi tiến độ!

Đến Bảng điều khiển →

Từ Của Năm

Những từ nổi bật nhất định hình mỗi năm. Khám phá từ vựng đã tạo nên thế giới của chúng ta.