1. A person who is unwilling to consider new ideas, opinions, or perspectives; someone who is mentally rigid or inflexible
He has a closed mind and refuses to listen to any viewpoint different from his own.
Ele tem uma mente fechada e se recusa a ouvir qualquer ponto de vista diferente do seu.
2. The state of being resistant to change or new information
Her closed mind prevented her from understanding the scientific evidence.
Sua mente fechada impediu que ela compreendesse as evidências científicas.