What does aggressive mean?
Aggressive describes someone or something ready to attack, confront, or compete forcefully. In its most common sense it refers to hostile or belligerent behavior — an aggressive driver, an aggressive dog, an aggressive tone of voice — and carries clearly negative connotations of threat and intimidation. Yet the word also has a widely used, more neutral meaning: an aggressive sales strategy, aggressive investment approach, or aggressive medical treatment is simply one that is bold, energetic, and uncompromising in pursuit of results. In medicine, aggressive specifically characterizes diseases such as cancers that grow and spread rapidly. Derived from the Latin verb aggredi, meaning 'to approach' or 'to attack', the adjective entered English in the late eighteenth century alongside the noun aggression. Because it spans both condemnation and admiration depending on context, aggressive is a versatile but context-sensitive word: writers should consider whether they mean hostility or determination, since the same term can signal either danger or drive.
adjectiveReady or likely to attack or confront; characterized by or resulting from aggression. Also used of behavior, actions, or strategies that are forceful, assertive, and determined in pursuit of a goal.
- Ready to attack or confront; hostile and belligerent in manner.
- (of actions, policies, or strategies) Forceful, bold, and determined; energetically pursuing a goal without hesitation.
- (medicine) (of a disease or tumor) Growing or progressing rapidly and severely.
"The company adopted an aggressive expansion strategy, opening new stores across three continents."
"The dog became aggressive whenever strangers approached its yard."
"Her aggressive negotiating style won the team several major contracts."
The word 'aggressive' comes from the Latin 'aggredi' — literally 'to walk toward' — so an aggressive person is, etymologically speaking, someone who marches straight at you.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aggressive
Aggressive derives from the Latin verb aggredi ('to approach, to set upon'), formed from ad- ('toward') plus gradi ('to step, to walk'). The related noun aggressio gave rise to English 'aggression', attested by the early seventeenth century, while the adjective 'aggressive' followed in the late eighteenth century. It shares this Latin root with words such as 'congress' and 'egress', all built on gradi and its past participle gradus.
Related word forms
How aggressive is actually used
The word carries strongly negative connotations when describing people or animals (hostility, threat), but is often neutral or even positive in business, sports, medicine, and finance contexts, where it denotes boldness and drive. In medical usage it describes fast-progressing diseases. Register is neutral; suitable for both formal and informal contexts.
Easily confused with aggressive
Assertive means confidently expressing one's views or needs without hostility, whereas aggressive implies a readiness to attack, dominate, or harm.