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Synonyms

aggressive

American  
[uh-gres-iv] / əˈgrɛs ɪv /

adjective

  1. An image of the word aggressive as defined by characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing.

    characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing.

    aggressive acts against a neighboring country.

    Synonyms:
    militant, pugnacious
    Antonyms:
    friendly
  2. making an all-out effort to win or succeed; competitive.

    an aggressive basketball player.

    Synonyms:
    assertive, enterprising, forceful
    Antonyms:
    hesitant, timid, shy, retiring
  3. vigorously energetic, especially in the use of initiative and forcefulness.

    an aggressive salesperson.

  4. boldly assertive and forward; pushy.

    an aggressive driver.

  5. emphasizing maximum growth and capital gains over quality, security, and income.

    an aggressive mutual fund.

  6. Medicine/Medical.

    1. (of a disease or tumor) growing or spreading rapidly; highly invasive; difficult or impossible to treat successfully.

      aggressive brain lesions.

    2. pertaining to a risky surgery or treatment, or to a medication that has grave side effects.

      aggressive chemotherapy.

  7. (of a plant) spreading more rapidly than is desirable; tending to spread where not wanted.

    The joe-pye weed may be too aggressive to contain in the small area you’ve designated.


aggressive British  
/ əˈɡrɛsɪv /

adjective

  1. quarrelsome or belligerent

    an aggressive remark

  2. assertive; vigorous

    an aggressive business executive

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of aggressive

First recorded in 1690–1700; from Late Latin aggressīvus, derivative of Latin aggressus, past participle of aggredī “to go to, approach, attack”

Explanation

Someone or something aggressive shows a lot of energy and has a strong impact. After the aggressive salesman stopped them again on their way through the mall, the couple got aggressive and replied in a loud, made-up foreign language until he went away. Being aggressive often means being physical or showing force, but it is equally powerful as an adjective reflecting a forceful determination to get something done. An aggressive football player may tackle everyone in sight to get a win, while a driven student might tackle a project or problem head-on with aggressive determination to improve their grade. Aggressive comes from the Latin aggress-, "attack," and being aggressive shows an intention to attack bodily, mentally, or verbally whatever gets in the way.

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Vocabulary lists containing aggressive

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“Against the backdrop of excessive dependency on a single molecule, aggressive and heavy diversification bets, along with impeccable commercial execution, are the need of the hour.”

From The Wall Street Journal ● Sep. 23, 2026

That could have the valuation closer to $400,000, which sounds aggressive.

From MarketWatch ● Sep. 23, 2026

After being shuttled in less than half an hour between aggressive air conditioning, a muggy Chicago street and the temperate library, the cup had begun producing condensation at an alarming rate.

From Salon ● Sep. 23, 2026

But Brook was the only batter to fall in a middle order collapse of 4-29 playing an aggressive shot.

From BBC ● Sep. 22, 2026

It was a mistake the others often made with him, to try to reason with him in a methodical, aggressive way, when all he wanted was to be reassured like a child.

From "The Secret History" by Donna Tartt

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