详细解释:n. 坚硬, 呆板, 刻板
【医】 强直, 僵硬
英语解释：
名词 stiffness:
the physical property of being inflexible and hard to bendthe property of moving with pain or difficultyfirm resoluteness in purpose or opinion or actionthe inelegance of someone stiff and unrelaxed (as by embarrassment)同义词：awkwardness, clumsiness, gracelessness