sterile

fecund, luxuriant, productive, prolific

enriched, fertilized, rich

impregnated, pregnant

potent

bearing, producing, yielding

blooming, bursting, flourishing, swarming, teeming

infectious, pathogenic, poisonous, sickening, toxic

bedraggled, besmirched, dingy, dirty, dusty, filthy, foul, grimy, grubby, grungy, mucky, muddy, nasty, smirched, soiled, sordid, stained, sullied, unclean, uncleanly, unwashed

defiled, polluted, tainted, unsterilized