一いっ喜き一いち憂ゆう

noun, noun or participle which takes 'suru', intransitive verb

alternate between joy and sorrow; swing between hope and despair

Describes a state where one's emotions fluctuate with every small change in circumstances, often used when someone is overly affected by external events. Common in the phrase 一喜一憂する.

• 株かぶ価かの動うごきに一いっ喜き一いち憂ゆうするのはよくない。

  It's not good to swing between joy and despair over every movement in stock prices.