rotten

The primary image is one of organic decay—something that was once fresh and healthy but has now collapsed into a foul-smelling, decomposed state. This physical visceral disgust carries over into its metaphorical uses.

When applied to morality or systems, it suggests a deep-seated, internal corruption that cannot be easily fixed because the damage is pervasive. It is more severe than "dishonest"; it implies a systemic failure of integrity.

In casual conversation, it describes an unpleasant experience or mood. In this context, it feels heavy and draining, similar to "miserable" or "terrible," often used to express frustration or self-pity.