WordWeb Online

1. Characterized by action, forcefulness or force of personality
   "a dynamical market";
   - dynamic

See also: can-do, changing, driving, energetic, energising [Brit], energizing, ever-changing, high-energy, high-octane, high-power, high-powered, high-voltage, impulsive, kinetic, projectile, propellant, propellent, propelling, propulsive, self-propelled, self-propelling, slashing

Encyclopedia: Dynamical