[syn: driving, impulsive]
2.  acting with vigor; 
- Example: "responsibility turned the spoiled playboy into a driving young executive"
The Collaborative International Dictionary of English v.0.48:
dynamical \dynamical\ adj. [Narrower terms: can-do; driving;
   energizing, energising, kinetic; forceful, slashing,
   vigorous; projectile; propellant, propellent, propelling,
   propulsive; renascent, resurgent; self-propelled,
   self-propelling; high-octane, high-powered, high-power,
   high-voltage]
   [WordNet 1.5] Dynamically \Dy*nam"ic*al*ly\, adv.
   In accordance with the principles of dynamics or moving
   forces. --J. Peile.
   [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Drive \Drive\ (dr[imac]v), v. t. [imp. Drove (dr[=o]v),
   formerly Drave (dr[=a]v); p. p. Driven (dr[i^]v'n); p.
   pr. & vb. n. Driving.] [AS. dr[imac]fan; akin to OS.
   dr[imac]ban, D. drijven, OHG. tr[imac]ban, G. treiben, Icel.
   dr[imac]fa, Goth. dreiban. Cf. Drift, Drove.]
   1. To impel or urge onward by force in a direction away from
      one, or along before one; to push forward; to compel to
      move on; to communicate motion to; as, to drive cattle; to
      drive a nail; smoke drives persons from a room.
      [1913 Webster]
            A storm came on and drove them into Pylos. --Jowett
                                                  (Thucyd. ).
      [1913 Webster]
            Shield pressed on shield, and man drove man along.
                                                  --Pope.
      [1913 Webster]
            Go drive the deer and drag the finny prey. --Pope.
      [1913 Webster]
   2. To urge on and direct the motions of, as the beasts which
      draw a vehicle, or the vehicle borne by them; hence, also,
      to take in a carriage; to convey in a vehicle drawn by
      beasts; as, to drive a pair of horses or a stage; to drive
      a person to his own door.
      [1913 Webster]
            How . . . proud he was to drive such a brother!
                                                  --Thackeray.
      [1913 Webster]
   3. To urge, impel, or hurry forward; to force; to constrain;
      to urge, press, or bring to a point or state; as, to drive
      a person by necessity, by persuasion, by force of
      circumstances, by argument, and the like. " Enough to
      drive one mad." --Tennyson.
      [1913 Webster]
            He, driven to dismount, threatened, if I did not do
            the like, to do as much for my horse as fortune had
            done for his.                         --Sir P.
                                                  Sidney.
      [1913 Webster]
   4. To carry or; to keep in motion; to conduct; to prosecute.
      [Now used only colloquially.] --Bacon.
      [1913 Webster]
            The trade of life can not be driven without
            partners.                             --Collier.
      [1913 Webster]
   5. To clear, by forcing away what is contained.
      [1913 Webster]
            To drive the country, force the swains away.
                                                  --Dryden.
      [1913 Webster]
   6. (Mining) To dig Horizontally; to cut a horizontal gallery
      or tunnel. --Tomlinson.
      [1913 Webster]
   7. To pass away; -- said of time. [Obs.] --Chaucer.
      [1913 Webster]
   8. Specif., in various games, as tennis, baseball, etc., to
      propel (the ball) swiftly by a direct stroke or forcible
      throw.
      [Webster 1913 Suppl.]
   9. to operate (a vehicle) while it is on motion, by
      manipulating the controls, such as the steering,
      propulsion, and braking mechanisms.
      [PJC]
The Collaborative International Dictionary of English v.0.48:
Driving \Driv"ing\, n.
   1. The act of forcing or urging something along; the act of
      pressing or moving on furiously.
      [1913 Webster]
   2. Tendency; drift. [R.]
      [1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Driving \Driv"ing\, a.
   1. Having great force of impulse; as, a driving wind or
      storm.
      [1913 Webster]
   2. Communicating force; impelling; as, a driving shaft.
      [1913 Webster]
   Driving axle, the axle of a driving wheel, as in a
      locomotive.
   Driving box (Locomotive), the journal box of a driving
      axle. See Illust. of Locomotive.
   Driving note (Mus.), a syncopated note; a tone begun on a
      weak part of a measure and held through the next accented
      part, thus anticipating the accent and driving it through.
   Driving spring, a spring fixed upon the box of the driving
      axle of a locomotive engine to support the weight and
      deaden shocks. [Eng.] --Weale.
   Driving wheel (Mach.), a wheel that communicates motion;
      one of the large wheels of a locomotive to which the
      connecting rods of the engine are attached; -- called
      also, simply, driver. See Illust. of Locomotive.
      [1913 Webster]
WordNet (r) 3.0 (2006):
driving
    adj 1: having the power of driving or impelling; "a driving
           personal ambition"; "the driving force was his innate
           enthusiasm"; "an impulsive force" [syn: driving,
           impulsive]
    2: acting with vigor; "responsibility turned the spoiled playboy
       into a driving young executive"
    n 1: hitting a golf ball off of a tee with a driver; "he sliced
         his drive out of bounds" [syn: drive, driving]
    2: the act of controlling and steering the movement of a vehicle
       or animal
Moby Thesaurus II by Grady Ward, 1.0:
151 Moby Thesaurus words for "driving":
   acid, action, active, actuating, advancing, adventuresome,
   adventurous, agency, aggressive, ambitious, animating, assailing,
   assaulting, attacking, automobiling, bicycling, biking, biting,
   blinding, busing, cat-and-doggish, causal, causative, charging,
   coactive, compelling, compulsatory, compulsive, compulsory,
   conduct, constraining, corrosive, cutting, cycling, direction,
   directive, drippy, drizzling, drizzly, drumming, dynamic,
   effective, enterprising, equitation, execution, exercise, forceful,
   forcible, functioning, go-ahead, gripping, gutsy, handling,
   holding, horseback riding, horsemanship, hustling, impellent,
   impelling, imperative, imperious, impressive, impulsive, in motion,
   incisive, incursionary, incursive, inducive, invading, invasionary,
   invasive, irresistible, irruptive, lively, management,
   manipulation, misty, misty-moisty, mizzly, mobile, mordant, motile,
   motivating, motivational, motive, motor, motorcycling, motoring,
   moving, nervous, obsessing, obsessional, obsessive, occupation,
   operancy, operation, pedaling, pelting, penetrating, performance,
   performing, piercing, pluvial, pluviose, pluvious, poignant,
   possessing, pouring, powerful, practice, preoccupying, pressing,
   propellant, propelling, propulsive, propulsory, pulsive, punchy,
   pushful, pushing, pushy, rainy, responsibility, restraining,
   riding, running, sensational, shoving, showery, sinewed, sinewy,
   slashing, steering, stirring, streaming, striking, strong, telling,
   thrusting, transitional, traveling, trenchant, up-and-coming,
   urgent, venturesome, venturous, vigorous, vital, work, working,
   workings