excitability

His wife's calm nature acts as a counterbalance to his excitability.

他妻子沉着冷静抵销了他急性子脾气。

Mild changes in personality occur, as well as erethism characterized by excessive, undue embarrassment, timidity, depression , discouragement, irritability, resentfulness, or excitability.

人性情出现轻微变化，以及过度兴奋、过分烦恼、胆小羞怯、抑郁不乐、沮丧泄气、经质烦燥、忿恨不满或易兴奋、激动。