How to deal with a difficult coworker

"Difficult coworker" covers a lot of ground. It includes the person who takes credit for others' work, the one who dominates every meeting, the one who agrees in person and then does the opposite, the one who communicates passive-aggressively, the one who simply doesn't do their share of the work.

Each of these requires a different response. Before deciding what to do, you need to diagnose what you're actually dealing with.

Diagnosis first

Start with two questions:

What behavior is specifically the problem? Not a general impression ("they're difficult") but a concrete behavior ("they commit to deadlines in our weekly sync and then miss them without flagging it"). The more specific you can get, the more useful any conversation will be.

What's the impact on your work or the team? This is the legitimate basis for raising the issue. Personal preference isn't a strong foundation for a difficult conversation. Impact is. "When this happens, I have to redo the work / miss my own deadline / have to explain to clients why we're late" — that's real.

These two elements — specific behavior, concrete impact — are the core of any productive conversation about a coworker problem.

The types and what to do

The credit-taker. Proactive visibility is the main lever here. Document your contributions. Copy the right people on relevant work. Present your own output when possible. In team settings, use "I" rather than "we" for things you own individually.

If the pattern is egregious, address it directly: "I noticed the summary to leadership attributed that analysis to you — I did most of that work and I'd like to be visible for it. Can we make sure I'm credited going forward?"

This conversation is uncomfortable but usually more effective than letting resentment accumulate.

The meeting dominator. Often best addressed structurally rather than personally. Propose agenda formats that give everyone time, or rotate facilitation. If you're facilitating, actively redirect: "That's useful — I want to make sure we hear from others. [Name], what's your read?"

If it's specifically derailing important meetings, a direct but low-stakes conversation can work: "I've noticed that our decision meetings sometimes get stuck when we go deep on a few people's views early. I wanted to see if you'd be up for trying a round-robin format."

The agree-in-person, do-the-opposite person. This pattern often comes from someone who avoids conflict but has legitimate objections they haven't surfaced. Direct address: "I want to make sure we're actually aligned, not just in agreement in the room. What concerns do you have about this plan?" in the meeting.

Follow-up in writing after meetings where you've reached agreement. Email summaries of decisions create accountability and a reference point: "Per our conversation, we agreed to X by Y. Does this match your understanding?"

The passive-aggressive communicator. This is among the harder patterns because passive aggression often communicates real frustration through indirection. The direct version sometimes breaks the cycle: "I want to make sure I'm not misreading this — when you said [X], I wasn't sure what you meant. Can you help me understand what's behind that?"

This gives the person an opportunity to say what they actually mean. Sometimes they take it. Sometimes they don't, but naming it creates some accountability.

The underperformer. If their underperformance is affecting your work, you have a basis for a direct conversation. If it's only affecting the team generally, the right escalation path is usually your manager, not a peer conversation.

For a direct conversation: "I need the [X] report to be delivered by Tuesday to keep my project on track. I've been getting it Wednesday or Thursday most weeks. Can you help me understand what's in the way?"

This is a professional conversation about a work need, not a complaint. Keep it focused on the impact on your work.

Having the conversation

Most coworker problems persist because people avoid the conversation. The anticipation of awkwardness is worse than the reality.

A useful structure:

1. Open with what you've noticed, specifically. Observations, not interpretations: "I've noticed that we often reach agreement in our meetings and then the direction changes before implementation."

1. Name the impact. "When that happens, I end up doing rework that I wasn't planning for."

1. Make a direct ask. "I'd like us to figure out a way to flag concerns earlier, or make our decisions in writing so we have a reference point. Is there something about how we're deciding things that isn't working for you?"

The last part matters — you're not just confronting, you're inviting information about what's causing the behavior. Sometimes you'll learn something that changes your understanding of the problem entirely.

When to escalate

Escalate to your manager when: - The behavior is severe (harassment, discrimination, significant misconduct) - You've addressed it directly and nothing changed - The behavior is affecting your ability to do your job materially and you don't have the standing to address it yourself

When you escalate, be specific: behavior, impact, what you've already tried. The goal is to give your manager something they can act on, not just process your frustration.

Escalating prematurely — before you've tried to address it directly — often makes you look conflict-averse and gives the coworker cause to say the issue was never raised with them.

What not to do

Complain to other coworkers. This builds coalitions, not solutions. It also has a way of getting back to the person, in a worse form than what you would have said directly.

Let it accumulate into a blow-up. Small, early conversations are easier than large, late ones. If you're surprised by how much frustration you feel in a confrontation, you probably waited too long.

Assume bad intent. Most difficult coworker behavior is about self-protection, anxiety, poor habits, or different work styles — not malice. Diagnosing it as malice forecloses the conversations that could actually help.

Practice the difficult coworker conversation — with an AI that plays your colleague.