This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Characterized by aggression: aggressive behavior.

adj. Inclined to behave in an actively hostile fashion: an aggressive regime.

adj. Assertive, bold, and energetic: an aggressive sales campaign.

adj. Of or relating to an investment or approach to investing that seeks above-average returns by taking above-average risks.

adj. Fast growing; tending to spread quickly and invade: an aggressive tumor.

adj. Characterized by or inclined toward vigorous or intensive medical treatment: an aggressive approach to treating the infection.

adj. Intense or harsh, as in color.

adj. Tending or disposed to aggress; characterized by aggression; making assaults; unjustly attacking.

adj. Tending or disposed to aggress; having or showing determination and energetic pursuit of one's own ends at the expense of others or mindless of others' needs or desires; characterized by aggression; making assaults; unjustly attacking. Opposite of unaggressive.

adj. marked by self-confident ambition, competitiveness, energy and initiative.

adj. tending to spread quickly.

adj. characteristic of an enemy or one eager to fight.

Characterized by aggression; tending to aggress; prone to begin a quarrel; making the first attack; offensive, as opposed to defensive: as, the minister pursued an aggressive foreign policy.

Synonyms Aggressive, Offensive. Offensive is the direct opposite to defensive. Offensive warfare is that in which one is quick to give battle, as opportunity offers or can be made, and presses upon the enemy. Aggressive warfare is only secondarily of this sort; primarily it is a warfare prompted by the spirit of encroachment, the desire of conquest, plunder, etc. A war that is thus aggressive is naturally offensive at first, but may lose that character by the vigor of the resistance made; it then ceases to be thought of as aggressive. Hence aggressive has come to be often synonymous with offensive.

adj. having or showing determination and energetic pursuit of your ends

adj. characteristic of an enemy or one eager to fight

adj. tending to spread quickly

"They use the term aggressive, and they define "aggressive" including things like insulting other kids, as well as fighting, and hitting, and more violence."

ravening    in-your-face    vulturine    pugnacious    high-pressure    bellicose    rough    raptorial    rapacious    predatory   

aggressor    aggression    passive aggressive    aggressivity    aggressiveness    aggressively   

enterprising    pushful    pushing    pushy    offensive    attacking    invasive    incursive    combative   

Progressive    depressive    excessive    expressive    impressive    obsessive    oppressive    possessive    progressive    recessive   

violent    energetic    active    hostile    ambitious    arrogant    destructive