- characterized by or tending toward unprovoked offensives, attacks, invasions, or the like; militantly forward or menacing: aggressive acts against a neighboring country.
- making an all-out effort to win or succeed; competitive: an aggressive basketball player.
- vigorously energetic, especially in the use of initiative and forcefulness: an aggressive salesperson.
- boldly assertive and forward; pushy: an aggressive driver.
- emphasizing maximum growth and capital gains over quality, security, and income: an aggressive mutual fund.
- (of a disease or tumor) spreading rapidly or highly invasive; difficult or impossible to treat successfully.
- pertaining to a risky surgery or treatment, or to a medication that has grave side effects: aggressive chemotherapy.
Origin of aggressive
SynonymsSee more synonyms on Thesaurus.com
1. pugnacious, militant. 2. forceful, enterprising, assertive.
1. friendly. 2. retiring, shy, timid, hesitant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for aggressive
Question those taking on the mantle of victimhood and you are immediately cast as some kind of aggressive, unfeeling oppressor.What the U-VA Rape Case Tells Us About a Victim Culture Gone Mad
December 6, 2014
Others on the RSD forum would deconstruct his approach: “too aggressive,” “too many questions,” “nervousness in your voice,” etc.School Shooters Love This Pickup Artist Website
December 5, 2014
They have experimented with new products and have invested millions into aggressive marketing and promotion.House of the Witch: The Renegade Craft Brewers of Panama
November 30, 2014
He even allegedly had a nickname for his violent, aggressive alter ego: Rick.Creed Singer Scott Stapp’s Fall From Grace: From 40 Million Albums Sold to Living in a Holiday Inn
November 27, 2014
Indeed, it is possible that the evidence points to aggressive acts on the part of Brown unknown to the public at this time.Awaiting the Grand Jury, Dread in Ferguson and America
November 16, 2014
Fandor was not in the least impressed by the lieutenant's aggressive declarations.A Nest of Spies
But it never seems to enter into the goat's head to do anything so aggressive.Things as They Are
They were not aggressive creatures; it was that that made them so terrible to Helen.Howards End
E. M. Forster
The aggressive Martians would be only too glad to explore the Moon.
The swiftness of the movement was aggressive enough to startle.Under Western Eyes
- quarrelsome or belligerentan aggressive remark
- assertive; vigorousan 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
Word Origin and History for aggressive
Online Etymology Dictionary, © 2010 Douglas Harper
- Characterized by aggression.
- Inclined to behave in a hostile fashion.
- Tending to spread quickly, as a tumor; fast-growing.
- Characterized by or inclined toward vigorous or intensive medical treatment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.