steadiness

I lack steadiness and strength, and my right side is weaker than my left.

我缺乏稳定性和力量，我的右侧比左侧弱。

Drawing required a steadiness of hand that his illness did not allow.

绘画需要手部的稳定性，但他因为疾病做不到这一点。

He displayed steadiness, intellectual curiosity, and a depth of knowledge.

他表现出稳定、求知欲和渊博的知识。