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Adjective: aggressive  u'gre-siv
  1. Having or showing determination and energetic pursuit of your ends
    "an aggressive businessman"; "an aggressive basketball player"; "he was aggressive and imperious; positive in his convictions"; "aggressive drivers"
     
  2. Tending to spread quickly
    "an aggressive tumour";
    - fast-growing, strong-growing
     
  3. Characteristic of an enemy or one eager to fight
    "aggressive acts against another country";
    - belligerent, chippy [N. Amer]

See also: assertive, battleful, bellicose, combative, competitive, hard-hitting, high-pressure, hostile, invasive, in-your-face, militant, obstreperous, offensive, predatory, pugnacious, rapacious, raptorial, ravening, rough, scrappy, self-asserting, self-assertive, truculent, vulturine, vulturous

Antonym: unaggressive

Encyclopedia: Aggressive