forceful, slashing, vigorous

from 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]
    

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