- (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.
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|Lizzie Crocker|December 6, 2014|DAILY BEAST
Others on the RSD forum would deconstruct his approach: “too aggressive,” “too many questions,” “nervousness in your voice,” etc.
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|Jeff Campagna|November 30, 2014|DAILY BEAST
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|Marlow Stern|November 27, 2014|DAILY BEAST
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|Gene Robinson|November 16, 2014|DAILY BEAST
Lushington was an aggressive smoker, and with every puff he seemed to say: 'There!Fair Margaret|Francis Marion Crawford
In February secret agents from congress were in Montreal to see if an aggressive policy could be safely pursued.Montreal 1535-1914, Volume II (of 2)|William Henry Atherton
Very few beasts or reptiles are aggressive; it is only when they feel cornered that they turn.The Adventures of Kathlyn|Harold MacGrath
The doughty and aggressive Captain Ebenezer Allen harassed their rear whenever opportunity was given for striking a blow.Vermont|Rowland E. Robinson
However, this man's voice seemed rather timid than bold, and up to the present his manner had been more discreet than aggressive.The Works of Guy de Maupassant, Volume VIII.|Guy de Maupassant