extremely energetic, dynamic, and capable

high-powered executives.

of a forceful and driving character

high-powered selling techniques.

capable of a high degree of magnification

a high-powered microscope.

very powerful.

adjective

authoritarian , authoritative , commanding , controlling , dominant , dynamic , effective , effectual , forceful , forcible , in control , influential , in the saddle , mighty , potent , robust , ruling , strong , supreme , weighty