Search Result for "aggressiveness": 
Wordnet 3.0

NOUN (3)

1. the quality of being bold and enterprising;

2. a feeling of hostility that arouses thoughts of attack;
[syn: aggression, aggressiveness]

3. a natural disposition to be hostile;
[syn: aggressiveness, belligerence, pugnacity]

The Collaborative International Dictionary of English v.0.48:

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 aggressive tumor. [Narrower terms: invasive (vs. noninvasive) ] --AS Syn: fast-growing(prenominal) [WordNet 1.5] 4. Tending to initiate unprovoked attacks; initiating unprovoked military action; eager to fight; as, aggressive acts against another country. Syn: belligerent. [WordNet 1.5] Note: Narrower related terms: {bellicose, combative, pugnacious, scrappy, truculent ; {hard-hitting, high-pressure ; {hostile (used of attempts to buy or take control of a business: "hostile takeover"; "hostile tender offer"); predatory, rapacious, raptorial, ravening, vulturine, vulturous . See also: assertive, hostile, offensive. [WordNet 1.5] -- {Ag*gres"sive*ly, adv. -- Ag*gres"sive*ness, n. [1913 Webster]
WordNet (r) 3.0 (2006):

aggressiveness n 1: the quality of being bold and enterprising 2: a feeling of hostility that arouses thoughts of attack [syn: aggression, aggressiveness] 3: a natural disposition to be hostile [syn: aggressiveness, belligerence, pugnacity]