When an INFJ becomes angry, it is often a rare occurrence as they tend to be calm and composed individuals. However, when their anger is triggered, it can be intense and overwhelming for them. Here is a detailed description of how an INFJ may behave when angry:

1. Internal turmoil: INFJs are highly introspective and self-aware individuals. When they become angry, they may experience a whirlwind of emotions internally. They may feel a deep sense of frustration, disappointment, and even betrayal. This internal turmoil can be quite distressing for them.

2. Withdrawal: INFJs have a tendency to withdraw from the situation or the person who has caused their anger. They may retreat into their own thoughts and emotions, seeking solitude to process their feelings. This withdrawal can be seen as a defense mechanism to protect themselves from further emotional harm.

3. Passive-aggressiveness: Instead of expressing their anger directly, INFJs may resort to passive-aggressive behavior. They may become sarcastic, make subtle jabs, or use passive-aggressive remarks to convey their displeasure. This is because they often struggle with confrontation and may find it difficult to express their anger openly.

4. High emotional intensity: When an INFJ is angry, their emotions can become heightened. They may experience intense feelings of anger, sadness, or even despair. This emotional intensity can sometimes be overwhelming for them, leading to tears or emotional outbursts.

5. Idealistic anger: INFJs have a strong sense of justice and fairness. When they become angry, it is often because they feel that their values or principles have been violated. Their anger may stem from a perceived injustice or a breach of trust. They may become vocal about their beliefs and fight passionately for what they believe is right.

6. Non-confrontational expression: INFJs may struggle with expressing their anger directly, especially if it involves confrontation. Instead, they may choose to express their anger through creative outlets such as writing, art, or music. These outlets allow them to channel their emotions constructively and find solace in their creative expression.

7. Seeking resolution: Despite their anger, INFJs are driven by a desire for harmony and understanding. They may actively seek resolution and reconciliation once they have had time to process their emotions. They are willing to engage in open and honest conversations to address the underlying issues and find a way forward.

It is important to note that not all INFJs may exhibit these behaviors when angry, as individuals can vary greatly. However, these descriptions provide a general understanding of how an INFJ may react when their anger is triggered.