他的心情坏极了。

He was in a vile mood.

《牛津词典》

情绪在从众心理上有复杂的影响，有证据显示当我们心情好时更可能随大流，比我们心情坏时。

Moods can have complex effects on conformity, but there's some evidence that we're more likely to conform when we're in a good mood than a bad mood.

youdao

To say giving bad news to an enemy is reinforcing because it makes the enemy feel bad doesn't say anything different from giving bad news to an enemy feels good because we like to give bad news to an enemy.

由于使敌人感到不快,而认定向敌人散布坏消息是强化行为,这与因为我们想要敌人听到坏消息,而向心情良好的敌人散布坏消息,没什么区别。

耶鲁公开课 - 心理学导论课程节选