1. Excessive zeal; fervent or fanatical devotion to a cause, belief, or ideology
His religious zealotry alienated many of his former friends.
Seu fanatismo religioso afastou muitos de seus antigos amigos.
2. The behavior or practices of a zealot; blind, unthinking adherence to principles
Political zealotry has made compromise impossible in the legislature.
O fanatismo político tornou o compromisso impossível na legislatura.