How to respond to a passive aggressive coworker

Passive aggressive behaviour at work is difficult to address for a specific reason: it operates with plausible deniability. The sarcastic remark was "just a joke." The email that copied your manager was "just keeping everyone informed." The deliberate slowness on your project was "a lot on my plate right now." Each incident, taken alone, sounds like a misreading. Taken together, they form a pattern — and you know it, even when you cannot prove it.

Why the obvious responses do not work

The instinctive response to passive aggression is one of two things: confront it directly, or absorb it and say nothing. Both tend to backfire. Direct confrontation — "that felt passive aggressive" — hands the other person exactly what they need. They deny it, you look oversensitive, and the power dynamic shifts in their favour. Absorbing it, on the other hand, signals that the behaviour works. It will continue.

There is a third option that most people overlook: name the behaviour without naming the intent. Address what was communicated rather than what was meant. This removes the deniability that passive aggression depends on, without making an accusation you cannot prove.

The three most common patterns and how to address each

1. The undermining comment delivered as a compliment

This typically sounds like: "I'm impressed you managed to get that done given how much you had going on." The surface is positive. The subtext — that your workload was a problem, that finishing was surprising — is the actual message. The move: respond only to what was said, not to what was implied. "Thanks" — nothing more. Do not over-explain or defend. The less you engage with the subtext, the less fuel there is for it.

2. The CC escalation

Being copied on a reply that includes your manager or a senior colleague, without context, is a workplace passive aggression — it signals that the sender wants a witness or wants to apply pressure. The most effective response is to take the thread offline immediately. Reply directly to the coworker only: "Happy to talk through this directly — does this afternoon work?" This de-escalates without acknowledging the escalation, and puts the choice back on them.

3. The silent non-complier

Work is requested. Deadlines pass. Responses are brief, technically accurate, and provide no path forward. The response is specificity: replace open requests with closed ones. Instead of "can you get me the report when you can," say "I need the report by Thursday EOD — let me know if there is a blocker." Vague requests invite vague non-compliance. Specific requests with explicit deadlines make the choice visible.

What to do when it becomes a pattern

A single passive aggressive comment can be let go. When the behaviour is consistent and affecting your work, it warrants a direct conversation — one that is documented. Request a one-to-one meeting and address specific instances rather than the general pattern. "When the Henderson report came in two days after the deadline without notice, it created problems downstream for my deadlines. I need us to agree on how to handle this going forward." Specific. Factual. No characterisation of intent.

If the behaviour continues after a direct conversation, the path is HR documentation — not a complaint, but a record. Note dates, specifics, and the impact on your work. Pattern documentation converts a series of individually deniable incidents into something that can be addressed at a management level.

The most important thing to protect

The goal is not to win the dynamic. It is to prevent the behaviour from affecting your work and your own communication. Passive aggression is contagious — the longer you absorb it, the higher the risk that your own responses begin to carry the same register. Check your own messages before sending. Make sure what you write is direct, specific, and clean of the indirect signals you are trying to avoid in others.

About this article

Before You Send is an emotional communication analysis tool built around principles from communication psychology and conflict research. These articles are written to help people navigate difficult communication situations — at work, in relationships, and in family dynamics.