obstinacy

noun
1
the attitude of somebody who refuses to change their opinions, way of behaving, etc. when other people try to persuade them to; behaviour that shows this
لجاجت, سرسختی, یکدندگی, خیره‌سری, پافشاری, اصرار, لج‌بازی, سخت‌سری
synonym stubbornness