putrid

This word evokes a visceral reaction of disgust and nausea. It is far more intense than rotten or spoiled, specifically emphasizing the offensive odor that accompanies organic decomposition. It suggests a state of advanced decay where the substance is no longer just bad, but actively repulsive to the senses.

When used in a social or political context, it describes a level of corruption that is so deep it feels sickening. It implies a systemic rot that has permeated an organization, making the behavior not just illegal, but morally nauseating and offensive to the public conscience.