汉语翻译：
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 bend

the property of moving with pain or difficulty

firm resoluteness in purpose or opinion or action

the inelegance of someone stiff and unrelaxed (as by embarrassment)同义词：awkwardness, clumsiness, gracelessness

excessive sternness同义词：severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, hardness

As I got about, the stiffness in my left leg gradually worked off.我走动走动，左腿渐渐地不再僵直了。