aggressive

aggressive
    adj 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" [ant:
           {nonaggressive}, {unaggressive}]
    2: tending to spread quickly; "an aggressive tumor" [syn:
       {aggressive}, {fast-growing(a)}, {strong-growing}]
    3: characteristic of an enemy or one eager to fight; "aggressive
       acts against another country"; "a belligerent tone" [syn:
       {aggressive}, {belligerent}]
    

Aggressive \Ag*gres"sive\, a. [Cf. F. agressif.]
   1. 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; as, an aggressive policy, war, person,
      nation; an aggressive businessman; an aggressive
      basketball player; he was aggressive and imperious in his
      convictions; aggressive drivers. Opposite of
      {unaggressive}.
      [1913 Webster + WordNet 1.5]

            No aggressive movement was made.      --Macaulay.
      [1913 Webster]

   2. Marked by self-confident ambition, vigorous
      competitiveness, energy and initiative; as, an aggressive
      young executive.

   Syn: enterprising, pushful, pushing, pushy
        [WordNet 1.5]

   3. (Med., Biol.) Tending to grow or spread quickly; as, an
    

141 Moby Thesaurus words for "aggressive":
      abrupt, active, acute, adventuresome, adventurous, ambitious,
      animated, antagonistic, assertive, battling, bearish, beastly,
      bellicose, belligerent, bickering, bloodthirsty, bloody,
      bloody-minded, bluff, blunt, bold, brash, brisk, brusque, cavalier,
      chauvinist, chauvinistic, churlish, combative, contentious, crusty,
      curt, disputatious, divisive, domineering, driving, dynamic, enemy,
      energetic, enterprising, enthusiastic, eristic, factional,
      factious, ferocious, fierce, fighting, forceful, forcible, forward,
      full of fight, full of pep, go-ahead, go-go, gruff, hard-hitting,
      harsh, hawkish, hearty, hostile, hustling, imperious, impetuous,
      incisive, inimical, intense, irascible, irritable, jingo, jingoish,
      jingoist, jingoistic, keen, kinetic, litigious, lively, living,
      lusty, martial, masterful, mettlesome, militant, militaristic,
      military, offensive, on the offensive, partisan, peppy, polarizing,
      polemic, pugnacious, pushful, pushing, pushy, quarrelsome, robust,
      rough, saber-rattling, sanguinary, sanguineous, savage, scrappy,
      self-assertive, severe, sharp, short, shrewish, smacking, snappy,
      snippy, soldierlike, soldierly, spanking, spirited, strenuous,
      strong, surly, take-charge, take-over, tough, trenchant,
      trigger-happy, truculent, unfriendly, unpacific, unpeaceable,
      unpeaceful, up-and-coming, venturesome, venturous, vibrant,
      vigorous, vivacious, vivid, warlike, warmongering, warring,
      wrangling, zestful, zesty, zippy