impotent

fecund, luxuriant, productive, prolific

enriched, fertilized, rich

impregnated, pregnant

potent

bearing, producing, yielding

blooming, bursting, flourishing, swarming, teeming

able, capable, competent, effective, efficient

authoritarian, autocratic (also autocratical), despotic, dictatorial, magisterial, tyrannical (also tyrannic)

dominant, dynamic, energetic, forceful, robust, sturdy, tough, vigorous

important, major, significant

high-level, senior, top