Buddhists can and do get angry. Buddhist practice does not make a person emotionally incapable of anger. Instead, anger is treated as a mental state to be understood, restrained, and transformed because it can lead to harmful speech, action, and distorted judgment.

Anger as an unwholesome state
Many Buddhist teachings connect anger or aversion with one of the basic roots of suffering. Hatred, greed, and delusion reinforce each other and shape karma when they drive intentional behavior.
The ethical concern is therefore not the mere appearance of an emotion but what happens when a person identifies with it, feeds it, or acts from it.
Mindfulness does not mean suppression
Mindfulness can help a practitioner notice physical tension, thoughts, and impulses before reacting. The aim is not to pretend that anger is absent.
Suppressing anger without understanding it can leave resentment untouched. Buddhist practice instead encourages clear awareness of causes and consequences.
Loving-kindness and compassion
Mettā meditation deliberately cultivates goodwill. Compassion recognizes suffering in oneself and others. These practices can weaken habits of hostility over time.
They do not require accepting abuse or injustice. A person can set firm boundaries or oppose harmful behavior without cultivating hatred.
Right speech and right action
When anger is strong, Buddhist ethics places special importance on speech and action. Insults, threats, deliberate humiliation, and violence create further harm even when the original grievance is legitimate.
Pausing, delaying a message, or leaving a dangerous situation can be practical forms of restraint.
A realistic Buddhist view
Buddhist training is not about never feeling anger. It is about seeing anger clearly enough that it does not control the mind, speech, and behavior.