a person or thing with characteristics that are unusual among people or things of their kind
گونه نادر, پدیده نایاب, گونه کمیاب, فرد استثنایی, چیز نادر, شخص منحصر به فرد, نمونه غیرمعمول, موجود متمایز
He's that rare breed of politician who has remained true to his ideals.