A few years ago, HR leaders were panicking over "Quiet Quitting." In 2026, we are facing a much darker, more destructive evolution: Resenteeism . Resenteeism occurs when employees (and often middle managers) are deeply unhappy and burnt out, but due to economic uncertainties or a tough job market, they cannot afford to leave. Instead of quietly doing the bare minimum, they stay and actively radiate resentment. They kill team morale, block innovation, and create a toxic atmosp