When Your Colleague Throws You Under the Bus in Meetings

I'll never forget the meeting where Sarah, my supposed teammate, completely blindsided me in front of our entire leadership team. I was presenting our quarterly marketing strategy when she interrupted to point out "several concerns" she'd never mentioned before, effectively making me look unprepared and incompetent. That's when I learned the hard way what to do when a colleague undermines you in meetings — and more importantly, what not to do.

My immediate reaction was to get defensive and try to counter her points on the spot, which only made things worse. I stumbled through explanations, looked flustered, and probably confirmed whatever doubts she'd planted. It was a masterclass in how not to handle workplace sabotage, and I spent the next few weeks figuring out how to rebuild my credibility.

The truth is, dealing with an undermining colleague requires a completely different approach than most workplace conflicts. You can't just hash it out over coffee or send a strongly worded email. When someone's actively working to damage your reputation in front of decision-makers, you need to be strategic, not reactive.

Stay Calm and Document Everything

The first thing I learned is that your initial response sets the tone for everything that follows. When Sarah threw me under the bus, my defensive reaction made me look just as unprofessional as her behavior. Now I know that staying composed in the moment is your most powerful tool.

If a colleague undermines you during a meeting, acknowledge their comment briefly and redirect back to the agenda. Something like "Thanks for bringing that up, Sarah. Let's circle back to that after I finish presenting the main strategy" works perfectly. You're not dismissing them, but you're also not letting them derail your presentation.

After the meeting, document exactly what happened. Write down who was present, what was said, and how it impacted the discussion. This isn't about building a legal case — it's about having clear facts when you need to address the situation later. I started keeping a simple notebook where I'd jot down these incidents, and the pattern became obvious pretty quickly.

What surprised me was how often these undermining behaviors happen in front of specific audiences. Sarah never questioned my work when it was just our immediate team, but put her in a room with senior leadership and suddenly she had all sorts of "concerns" about my projects. Recognizing this pattern helped me prepare better responses.

Address It Directly But Strategically

The biggest mistake I made initially was hoping the behavior would just stop on its own. It won't. You need to address it directly with your colleague, but timing and approach matter enormously.

Don't confront them immediately after the meeting when emotions are running high. Wait a day or two, then schedule a private conversation. I found that being direct but not accusatory works best. Instead of saying "You undermined me in that meeting," try "I noticed you had some concerns about the marketing strategy. I wish we could have discussed those beforehand so I could address them in my presentation."

This approach does two things: it makes it clear you noticed their behavior, and it establishes your expectation for how future disagreements should be handled. Sometimes people don't even realize they're being undermining — they think they're just being thorough or playing devil's advocate.

I tried this approach with Sarah, and honestly, it didn't change her behavior much. But it did accomplish something important: it put her on notice that I was paying attention and that her actions had consequences. The Equal Employment Opportunity Commission notes that addressing workplace conflicts early can prevent them from escalating into more serious issues.

If the direct approach doesn't work, you may need to involve your manager. This feels uncomfortable — nobody wants to be seen as tattling — but sometimes it's necessary. When you do this, focus on the impact to team productivity and project outcomes, not on personal grievances.

Build Your Own Credibility Network

Here's something nobody tells you about workplace undermining: the best defense is building relationships before you need them. After my experience with Sarah, I realized I'd been so focused on doing good work that I'd neglected the relationship-building side of my job.

I started having regular one-on-ones with stakeholders, not just when I needed something from them. I'd share project updates, ask for feedback, and make sure they understood my role and contributions. When someone tries to undermine you in front of people who already know and trust your work, their efforts fall flat.

I also learned the value of having allies in meetings. Not people who will fight your battles for you, but colleagues who understand your work well enough to provide context when someone tries to throw you under the bus. During one particularly tense meeting where Sarah was at it again, my colleague Mike simply said, "Actually, that approach worked really well for the Johnson project last month." It completely deflated her criticism.

The other thing that helped was being more proactive about addressing potential issues in my presentations. Instead of waiting for someone to poke holes, I'd acknowledge limitations or challenges upfront and explain how I planned to address them. This made it much harder for anyone to score easy points by bringing up obvious concerns.

Looking back, dealing with Sarah's undermining behavior taught me more about workplace dynamics than any leadership training ever could. It forced me to become more strategic in my communication, more intentional about relationship-building, and more confident in defending my work.

The situation with Sarah eventually resolved itself when she transferred to a different department, but by then I'd developed the skills to handle similar situations. I'll be honest — it's still not pleasant when someone tries to undermine you in a meeting, but now I know how to respond in a way that protects my reputation and maintains my professionalism. Sometimes the hardest workplace lessons are the ones that stick with you the longest.