- 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 unaggressive
She was mild and unaggressive, and these were qualities which Freddie esteemed.Jill the Reckless
P. G. (Pelham Grenville) Wodehouse
Possibly a too complaisant and unaggressive Nature had spoiled them.Openings in the Old Trail
Fortunately they are seldom anything but mild and unaggressive.Roving East and Roving West
E. V. Lucas
I would have it noted that the tactics of this fourth stage are unaggressive.The Brothers' War
John Calvin Reed
In his eyes was the sullen but unaggressive resentment of the whipped bully.The Tempering
Charles Neville Buck
- 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 unaggressive
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.