Resenting and opposing others' demands, making intentional mistakes in response to these demands, and a negative attitude are some of the signs of passive-aggressive behavior. Passive-aggressive people display their negative feelings indirectly, instead of confronting whatever is bothering them, notes Mayo Clinic.
Stalling and underhanded sabotage are two signs that a person is passive-aggressive, according to Psychology Today. Making excuses, reneging on previous agreements, purposely failing at assigned tasks and conveniently forgetting deadlines are ways passive-aggressive people show their displeasure. They try to avoid responsibility, but are unable to voice their concerns in a straightforward way.
Thinking that the world is against them is another sign of passive-aggressive behavior, per Psychology Today.
Dramatized personal issues, complaints about others cheating or mistreating them at work, and a constant victim mentality are common among passive-aggressive people. Often times their behavior is intentionally designed to gain sympathy and attention.
Other signs of passive-aggressive behaviors are lying, negative gossip about family and friends, putting down other people with words, or blaming others for their unhappiness and emotional instability. Although they appear agreeable in person, passive-aggressive people are often petty and resentful. Passive-aggressive behavior is not a medical illness, but it can cause problems in personal and professional relationships, states Mayo Clinic.