Updated May 2026
Something feels off with your team and you can't quite name it. Projects keep hitting strange delays. People who used to talk freely have gone quiet. Morale dipped weeks ago and nobody can tell you why. Instead, there's no big fight, no obvious problem, just a slow drag on everything.
That drag has a name. Silent undermining is the passive aggressive behaviour at work that operates below the radar, and it does more damage to teams than most leaders realise. Because nothing about it looks dramatic in isolation, it usually goes unaddressed until trust, productivity and good people have already started slipping away.
This guide covers what silent undermining actually looks like, why it's so corrosive, what's driving it underneath, and what leaders can practically do to stop it.
Key takeaways
- Silent undermining is passive aggressive behaviour that sabotages people quietly, without breaking any obvious rules.
- The damage compounds slowly through small actions like withheld information, backhanded compliments, and credit stealing.
- It thrives in workplaces with weak accountability, unclear expectations, and poor conflict skills.
- Leadership behaviour sets the ceiling. If you tolerate it, your team will too.
What is silent undermining?
Silent undermining is a form of passive aggressive behaviour that sabotages someone's work, reputation or credibility without overtly breaking any rules. However, unlike open workplace conflict, it operates under the radar, which makes it hard to spot and even harder to address.
It shows up as withheld information, ignored contributions, gossip behind someone's back, or veiled sarcastic comments that chip away at confidence. In short, anything that creates obstacles or discomfort without directly attacking the person. The "silent" part comes from the fact that it isn't loud or obvious. Sometimes it even disguises itself as helpfulness or concern.
Common examples to watch for
- Withholding information. A team member "forgets" to share vital details, and the project stalls.
- Backhanded compliments. "I didn't expect you to do such a great job on this." Sounds positive. Isn't.
- Credit stealing. Someone takes full credit for what was a team effort, leaving the rest feeling invisible.
- Subtle gossip. Casual asides that plant doubt. "I'm not sure they're cut out for this role, but we'll see."
- Non-verbal cues. Eye rolls during presentations. Sighs in meetings. Mocking without ever saying a word.
In isolation each of these looks minor. Collectively they create a workplace where collaboration grinds down and productivity drains away.
In fact, each of these actions might seem minor in isolation, but collectively, they can create a toxic work environment that stifles collaboration and productivity.
The real cost to your business
Silent undermining isn't just about hurt feelings. The effects ripple through the whole organisation.
It erodes trust. Trust is the foundation under every functioning team. When people don't trust each other, productivity suffers. Silent undermining creates an atmosphere of suspicion that slows workflows, increases second guessing, and quietly degrades performance.
It stifles innovation. New ideas need a safe place to land. When team members worry about being subtly mocked or ignored, they stop offering them. The employee who would have pitched a great idea sees colleagues roll their eyes and decides to keep quiet instead. Multiply that across a team and you lose your competitive edge without ever knowing it left.
It increases turnover. Talented people won't stay in a toxic environment. They disengage first, then they leave. The cost shows up in recruitment fees, but the bigger loss is the institutional knowledge walking out the door with them.
It lowers team morale. When people feel undervalued or unsupported, the energy drops across the whole team. Collaboration gets harder. People withdraw or get defensive. That makes the undermining behaviour easier to keep doing, and the cycle compounds.
It creates inefficiency. Withheld information, poor coordination, passive resistance. These all drain time and resources that should be driving the business forward.
How is this happening?
Silent undermining doesn’t happen in a vacuum. There are several root causes that contribute to this behaviour, and understanding them is key to addressing it.
It erodes trust.
Trust is the foundation under every functioning team. When people don't trust each other, productivity suffers. Silent undermining creates an atmosphere of suspicion that slows workflows, increases second guessing, and quietly degrades performance.
It stifles innovation.
New ideas need a safe place to land. When team members worry about being subtly mocked or ignored, they stop offering them. The employee who would have pitched a great idea sees colleagues roll their eyes and decides to keep quiet instead. Multiply that across a team and you lose your competitive edge without ever knowing it left.
It increases turnover
Talented people won't stay in a toxic environment. They disengage first, then they leave. The cost shows up in recruitment fees, but the bigger loss is the institutional knowledge walking out the door with them.
It lowers team morale
When people feel undervalued or unsupported, the energy drops across the whole team. Collaboration gets harder. People withdraw or get defensive. That makes the undermining behaviour easier to keep doing, and the cycle compounds.
It creates inefficiency
Withheld information, poor coordination, passive resistance. These all drain time and resources that should be driving the business forward.
It's worth noting that silent undermining often overlaps with other quiet problems, including micro toxic behaviours and the kind of favouritism that quietly erodes team trust. These patterns rarely show up alone.
Why it happens
Silent undermining doesn't appear out of nowhere. However, one of these is usually underneath it.
Insecurity. Some people undermine others because they feel threatened. Pulling someone else down feels safer than addressing their own self doubt.
Lack of accountability. If there's no clear consequence for the behaviour, it will keep happening. A culture that fails to address bad behaviour effectively gives it permission to grow.
Poor communication. When people don't know how to raise issues directly and respectfully, they default to passive aggressive tactics instead. The behaviour fills the gap left by a lack of conflict skills.
Power struggles. Sometimes silent undermining is a way to assert control without open confrontation. It's how someone "wins" without ever appearing to fight.
How to stop silent undermining in your team
Where leaders need to start
The good news is this behaviour is fixable. It just needs deliberate, sustained effort, and most of that effort starts with leadership. The six practices below are what actually shifts the pattern.
1. Promote open communication
Build a culture where people feel comfortable raising concerns. That doesn't mean inviting open conflict. It means creating space where team members can flag issues without fear of backlash. Regular check ins, feedback sessions, and training on how to have difficult conversations all help. The goal is to make direct communication easier than indirect undermining.
2. Set clear behavioural expectations
Define what's acceptable and what isn't, and make sure everyone knows where the line sits. If passive aggressive comments or withheld information are treated as "just how things are," nothing changes. Strong workplace policies matter here, because silent undermining can be a form of bullying and should be named as such.
3. Lead by example
Leaders set the ceiling for what's tolerated. If you engage in silent undermining yourself, or if you ignore it when you see it, you're telling the team it's acceptable. Be transparent, be respectful, and address subtle sabotage when you spot it. The longer it goes unaddressed, the more normal it becomes.
4. Build collaboration over competition
Encourage your team to work toward shared goals rather than against each other. When people are genuinely collaborating, they're far less likely to undermine each other. Team building, joint projects, and shared accountability all help to bridge gaps between people who don't naturally connect.
5. Support conflict resolution skills
Not everyone knows how to handle conflict well. Offer training or resources on conflict resolution and direct communication. A lot of silent undermining isn't malicious. It's what happens when someone doesn't have the skills to address an issue head on, so the behaviour leaks out sideways instead.
6. Address it directly when you see it
When you spot the behaviour, name it. Privately, calmly, and with specific examples. "I noticed in yesterday's meeting that you cut across Sarah twice while she was presenting. What was going on there?" Direct conversations stop the pattern. Vague hints don't.
What this looks like when it's working
A workplace free of silent undermining doesn't mean a workplace free of disagreement. Healthy teams disagree all the time. Instead, the difference is in how disagreement gets handled. People raise concerns directly. Credit gets shared. Information flows. Mistakes get discussed openly instead of weaponised later.
When that's the baseline, productivity lifts on its own. Trust holds even under pressure. Good people stay. And the slow corrosive drag that silent undermining creates simply doesn't have anywhere to take root.
As a leader, your role is to build the culture where that's possible. Promote open communication, set clear expectations, support people through conflict, and address subtle sabotage when you see it. Keep an eye on the small signals. They're the ones that matter most.
If your team is dealing with silent undermining and you'd like external support to work through it, get in touch with HR Staff n' Stuff. We help Melbourne businesses build workplaces where people actually want to do their best work.
Frequently Asked Questions
Silent undermining is passive aggressive behaviour that subtly sabotages a colleague's work, reputation or credibility without breaking any obvious rules. It includes things like withholding information, backhanded compliments, eye rolling, and taking credit for others' work. Because each action looks minor in isolation, it often goes unaddressed until significant damage is done.
It can be. When silent undermining is repeated, targeted at a specific person, and creates a risk to their health or safety, it can meet the definition of workplace bullying under Australian law. Even when it doesn't formally cross that line, it should be treated seriously because the impact on the target and the team is real.
Look for patterns rather than individual moments. Is one team member consistently left out of important communications? Does someone always seem to get their contributions overlooked? Are there repeated eye rolls, sighs, or sarcastic asides when a particular person speaks? If the same names keep coming up in the same patterns, you have something worth investigating.
The most common drivers are insecurity, poor conflict skills, lack of accountability in the culture, and unspoken power struggles. People rarely undermine others out of pure malice. Usually it's the easiest available behaviour given how they feel and what the culture allows.
Directly, privately, and with specific examples. Vague conversations about "team culture" don't shift the behaviour. Name what you saw, ask what was going on, and make clear what needs to change. Follow up to make sure the change holds. If the behaviour continues, treat it as a performance and conduct issue, not a personality quirk.
Yes, and when it does the damage is significantly greater. Team members are far less able to push back against a manager's behaviour, so the pattern entrenches faster. If you suspect a manager is undermining their reports, treat it as a serious issue. External HR support can help if you need an independent voice to investigate or mediate.
Genuine feedback is direct, specific, and aimed at helping the person improve. Silent undermining is indirect, vague, and aimed at making the person look smaller, even when it's dressed up as "just being honest." The test is whether the behaviour actually helps the person or only positions the speaker as superior.
