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Synonyms

aggressive

American  
[uh-gres-iv] / əˈgrɛs ɪv /

adjective

  1. 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

  • aggressively adverb
  • aggressiveness noun
  • aggressivity noun
  • antiaggressive adjective
  • hyperaggressive adjective
  • overaggressive adjective
  • overaggressiveness noun
  • superaggressive adjective
  • unaggressive adjective
  • unaggressiveness noun

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”

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.

Shula’s defense features an aggressive front that includes Pro Bowl edge rushers Jared Verse and Byron Young.

From Los Angeles Times

It also comes with housing policy in the spotlight after the president said in December that he would “announce some of the most aggressive housing reform plans in American history” in early 2026.

From Barron's

It also comes with housing policy in the spotlight after the president said in December that he would “announce some of the most aggressive housing reform plans in American history” in early 2026.

From Barron's

Since 2010, fatalities and serious injuries related to speeding and aggressive driving have increased by 52%, according to the California Department of Transportation.

From Los Angeles Times

“We believe the group is trading close to fair value here, and would look to be more aggressive when the market gives us the opportunity, like we did in 2025,” he added.

From Barron's