Puissant

a.

1.

Powerful; strong; mighty; forcible; as, a puissant prince or empire. Of puissant nations which the world possessed. - Spenser. And worldlings in it are less merciful, And more puissant. - Mrs. Browning.

Adj.

1.

puissant - powerful

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