Home > Blog > 5 Signs of an Aggressive Coworker (and How to Respond)
Indirect friction at work, such as a pointed email or a meeting invite that never arrives, can affect employees, managers, and HR leaders alike. It can be hard to address because nothing openly hostile has been said.
Signs of an Aggressive Coworker
Signs of an aggressive coworker can be overt, like a raised voice, or quiet, like a steady stream of critique.
- They may show a hostile attitude in routine exchanges, such as a curt tone, dismissive replies, or visible irritation when asked for help.
- They may respond to perceived slights with retaliation, such as returning criticism or resisting that person’s ideas, and the pattern can repeat.
- Their body language may look defensive or aggressive. Examples include crossed arms, a clenched jaw, or stepping into someone’s personal space.
- They may react sharply to small questions, mistakes, or requests. The response can seem larger than the situation calls for.
- They may focus on critiquing a colleague’s work, pointing out flaws often while rarely acknowledging what’s going well.
A disrespectful coworker may show several of these signs at once, and noticing that pattern early can help you choose a measured, safety-minded response.
What Passive-Aggressive Behavior at Work Looks Like
To deal with a passive aggressive coworker, stay calm, look for a pattern, and talk privately about the specific behavior you’ve noticed. If the behavior continues, escalate it through your organization’s process. A passive aggressive coworker expresses frustration indirectly, through tone, delays, exclusion, or backhanded remarks, instead of voicing disagreement openly.
The modern workplace can bring together a wide range of people from different backgrounds and experience levels. Some friction is a normal result of those differences.
Passive aggression is one way that friction can surface. A person may feel frustrated or overlooked but not feel able to say so directly. This means that instead of yelling or fighting with someone, a person may use a relatively passive tone to convey aggressive thoughts.
Openly aggressive behavior, such as yelling or threats, is visible to anyone present.
Signs of a Passive Aggressive Coworker
Signs of a passive aggressive coworker can be subtle and easy to deny. For example, a passive-aggressive person may make backhanded compliments about a person. Similarly, a passive-aggressive person may try to exclude others from social gatherings or meetings.
Other signs can include the following behaviors.
- They give someone the silent treatment or hold back information that colleagues need.
- Their smile or body language doesn’t match what they’re saying.
- Their emails lean on pointed phrases such as “per my last email” or “as previously stated.”
- They agree to a plan in a meeting and then don’t follow through.
Any one of these can have an innocent explanation. A person’s behavior and body language are just as vital as the words they say. Someone may seem stiff or guarded around a particular colleague.
By comparison, the same person may be more open and casual when they’re around friends or colleagues they do appreciate. So, if a coworker’s behavior doesn’t match their words, they could be hiding passive-aggressive tendencies.
Constructive criticism can be helpful in a workplace, and sometimes necessary. Feedback about the work can help, while repeated remarks aimed at the person may feel personal.
These behaviors can build over time. For example, the conflict could begin with snide comments but then escalate into more overt conflicts or arguments. The effects may then reach the wider team.
Why People Act Passive-Aggressively at Work
Indirect hostility can be a sign of needs that aren’t being met. A person may want to feel respected, included, or in control of their own work.
The six core psychological needs that can sit beneath conflict may explain behavior that seems out of proportion to one event. In practice, one common reason may be fear, since some people avoid direct disagreement when they worry about conflict or reprisal.
The 1999 Edmondson psychological safety study defined psychological safety as “a shared belief that the team is safe for interpersonal risk taking.” Amy Edmondson’s study, published in Administrative Science Quarterly, didn’t measure passive aggression. Still, it’s reasonable to infer that people who expect blame for speaking up may voice disagreement indirectly instead.
Gossip or incomplete information about a decision or a colleague may also play a part. In other instances, passive aggression may stem from personal issues happening below the surface.
How to Respond to a Passive Aggressive Coworker
A measured response to a passive aggressive coworker can follow four steps, each giving the other person a chance to change course. If you have a safety concern or the behavior may involve harassment, go straight to your manager or HR.
Stay Calm and Don’t Mirror the Behavior
A calm response gives the situation room to cool down. Replying with sarcasm, silence, or a pointed email of your own can escalate the conflict.
Before you reply, pause and notice your reaction. Then respond to the content of the message and set the tone aside. Building emotional intelligence for de-escalation can help you better understand your triggers and respond with intention.
Check the Pattern Before You Act
One ambiguous message may not mean what it seems. This problem is even more challenging when you’re interacting with someone via text-based communication. For example, what you may assume is a passive-aggressive email may actually be a misunderstanding.
Notice whether the behavior appears only with you or with others too. Keep brief, factual notes on what happened, when it happened, and who was present.
For example, one passive-aggressive email may not be enough for corrective action. However, a pattern of passive-aggressive behavior over a long period could be more than sufficient for conflict resolution.
Have a Private, Specific Conversation
A private conversation gives the other person a chance to respond without an audience. The challenge is that the person’s words are often softer than their intent.
Describe what you observed instead of guessing at motives, and use “I” statements to share the effect it had on you. You might say, “I noticed I wasn’t included in Tuesday’s planning meeting, and I’d like to stay involved in that project.” Avoid labels such as “passive-aggressive,” which can put someone on the defensive.
Pointed written phrases can be answered calmly and on substance, as in these replies.
- When someone writes “per my last email,” you might reply, “Thanks for resending that. Can you confirm the deadline is still Friday?”
- When someone writes “as I mentioned,” you might reply, “Thanks. Let’s add this to the project notes so everyone can find it.”
- When a meeting agreement stalls, you might say, “On Monday we agreed you’d send the draft. Is something getting in the way?”
If talking it through doesn’t help, guidance on resolving conflict with a coworker covers ways to agree on next steps.
Escalate Through Your Organization’s Process
If the behavior continues after a direct conversation, bring it to your manager or HR. Share specific examples from your notes, including dates. Once you’ve gotten the ball rolling and reported a coworker’s actions, make sure to follow up to see what’s being done.
How to Handle an Aggressive or Hostile Coworker
Hostile behavior calls for a firmer, safety-focused response than you’d use with a passive aggressive coworker. The OSHA workplace violence definition includes “any act or threat of physical violence, harassment, intimidation, or other threatening behavior that occurs at the work site.”
If a coworker becomes hostile, general safety-minded steps that can help include staying composed, speaking slowly and quietly, and keeping a comfortable physical distance. Giving the other person space, and never blocking an exit, may also lower the tension.
You might set a clear limit, such as, “I want to talk about this, but I’d like to wait until we can both speak calmly.”
Afterward, write down what happened, including the words used, the time, and any witnesses. Report it promptly to your manager, HR, or security team. If there’s an immediate threat of violence or serious harm, follow your organization’s emergency procedures, because de-escalation supports safety but never replaces safety protocols.
More detail on calming tense moments appears in this guide to handling aggression in the workplace.
When Passive Aggression Becomes Bullying or Harassment
Passive aggression can cross into bullying when it becomes repeated and targeted at one person. In a 2024 Workplace Bullying Institute poll, 32% of adult Americans reported having been directly bullied at work at some point. The WBI 2024 bullying survey relied on self-reported experiences and describes bullying as repeated mistreatment, including work sabotage and verbal abuse.
Legally defined harassment is a narrower category. The U.S. Equal Employment Opportunity Commission (EEOC) ties unlawful harassment to protected characteristics such as race, religion, or sex. Its EEOC harassment definition also notes that “petty slights, annoyances, and isolated incidents (unless extremely serious) will not rise to the level of illegality.”
Conduct that isn’t unlawful can still warrant a management response. If a concern may involve a protected characteristic, raise it with HR or legal counsel, who can explain your organization’s process.
For repeated, targeted behavior, set boundaries, keep documenting, and escalate. Guidance on addressing toxic work relationships covers holding those boundaries professionally.
What Managers and HR Can Do
Managers can address passive-aggressive behavior early, before it affects the wider team. A passive aggressive coworker on your team may not realize how their behavior lands. A short, private conversation that describes the behavior and its effect, then asks what’s getting in the way, can surface needs that haven’t been voiced.
The SHRM Civility Index for Q3 2025 estimates that U.S. organizations lose approximately $2,142,325,432 per day in reduced productivity and absenteeism due to incivility. SHRM bases that estimate on workers’ self-reported lost time, and its measure of incivility covers more than passive aggression.
In the same SHRM survey, 35% of workers agreed or strongly agreed that their manager ignored incivility. Leaders can set clear, consistent standards for how people disagree, give feedback, and follow through on commitments. They can also make it safe to disagree openly by inviting different views in meetings and responding to concerns without blame.
Clear channels for raising concerns, such as regular one-on-ones, give employees a direct alternative to indirect frustration.
Support for Persistent Coworker Conflict
When conflict keeps resurfacing, a trained, impartial mediator can help everyone involved talk about what’s beneath the surface. Pollack Peacebuilding Systems offers workplace mediation services that use a transformative, interest-based approach to explore each person’s needs, interests, and perspectives. Our Peacebuilders also support teams through de-escalation training and conflict management training.
