puissant

adj. powerful; forceful; strong, mighty

Adjective
1. powerful
(similar) powerful
(classification) archaism, archaicism

adj. powerful, strong, forcible; potent, mighty; stout

n. powerful, forceful

(a.)
Powerful; strong; mighty; forcible; as, a puissant prince or empire.
  

Synonyms and related words:
absolute, armipotent, ascendant, authoritarian, authoritative, authorized, autocratic, beefy, bouncing, clothed with authority, cogent, commanding, competent, consequential, considerable, controlling, dominant, doughty, duly constituted, dynamic, effective, eminent, empowered, energetic, ex officio, forceful, forcible, forcy, full-blooded, full-strength, governing, great, gutsy, gutty, hale, hard, hard as nails, hardy, hearty, hefty, hegemonic, hegemonistic, high-potency, high-powered, high-pressure, high-tension, husky, imperative, important, in force, in power, influential, iron-hard, irresistible, leading, lusty, mighty, mighty in battle, momentous, monocratic, nervy, obstinate, official, operative, potent, powerful, preeminent, prepotent, prestigious, prominent, ranking, red-blooded, robust, robustious, rugged, ruling, senior, stalwart, steely, stout, strapping, striking, strong, strong as brandy, strong as strong, strong-willed, sturdy, substantial, superior, supreme, telling, totalitarian, valid, vigorous, vital, weighty