Employee disengagement does not always stem from excessive workloads. In some cases, employees lose motivation because their work no longer challenges them, makes use of their skills, or gives them a sense of purpose.
This experience is often described as “rust-out”, a gradual loss of motivation associated with boredom, insufficient challenge, or feeling underutilised at work.
The issue comes amid persistently low employee engagement in the United States. According to Gallup's employee engagement research, just 31% of US employees were actively engaged at work in the first half of 2026. While this figure provides broader context, it does not establish how many employees experience rust-out specifically.
Alexis Verbin, a licensed clinical social worker and founder of Wellcore Healing in Denver, described rust-out to HRD America as a workplace experience rather than a formal clinical diagnosis.
Rust-Out vs. Burnout: Understanding the Difference
Rust-out and burnout can both involve reduced motivation and job satisfaction, but they may develop under different circumstances.
Rust-out is associated with a lack of stimulation, limited opportunities to use skills, or work that feels repetitive and disconnected from a person's strengths. Employees experiencing it may stop volunteering for projects, show less initiative, or simply go through the motions.
Burnout, by contrast, is associated with chronic workplace stress that has not been successfully managed. The World Health Organization's definition of burnout describes it as an occupational phenomenon resulting from chronic workplace stress, characterised by exhaustion, mental distance or cynicism toward one's job, and reduced professional efficacy.
The distinction matters because the same management response will not necessarily address both problems. Reducing workload may help someone overwhelmed by excessive demands, but it may do little for an employee who feels underchallenged.
How AI Could Contribute to Rust-Out
Changes in how work is performed may also affect employees' sense of involvement. Verbin suggested that when AI takes over complex thinking, strategy, or other meaningful responsibilities, some employees may be left with more repetitive tasks and fewer opportunities for intellectual engagement.
This is a potential concern rather than an established outcome for all AI users. The effect will depend on how organisations introduce the technology and redesign roles around it.
For HR leaders, the broader question is whether changes to job responsibilities preserve opportunities for employees to solve problems, collaborate, exercise judgement, and develop their skills.
Rust-out can also be difficult to detect when high-performing employees continue meeting expectations despite declining motivation. Managers may not recognise the problem if they assess engagement solely through productivity or completed tasks.
What Managers Can Do
Verbin recommends treating signs of disengagement as a reason to understand an employee's experience, rather than immediately assuming a lack of motivation or commitment.
- Managers can begin with open questions such as:
- Do you feel you are using your strengths in this role?
- Which parts of your work do you find most engaging?
- Would you like more challenge, learning opportunities, or responsibility?
The answers can help managers identify whether an employee needs greater autonomy, more meaningful assignments, opportunities to develop skills, or a clearer connection between their work and team goals.
Follow-through is equally important. If an employee asks for more responsibility or a chance to work on a challenging project, managers should revisit the conversation and discuss realistic next steps. Without action, regular check-ins can feel performative rather than supportive.
The aim is not simply to give employees more work. It is to make sure their responsibilities provide an appropriate level of challenge and allow them to contribute meaningfully.
Why Rust-Out Deserves HR Attention
Employee engagement can be influenced by workload, management, development opportunities, job design, and the extent to which people feel their skills are being used.
Rust-out offers HR teams another way to think about disengagement, particularly when employees continue delivering results but show less initiative or interest in their work.
Recognising those signs early can prompt more useful conversations about role design, career development, and employee expectations before disengagement becomes harder to address.
Source: HRD America, with employee engagement data from Gallup and clinical context from the World Health Organization.
