impassive = showing no signs of feelings; unmoved, expressionless

• She remained impassive as the officer informed her of the tragic news.
• As the jury announced the verdict, the accused remained impassive.
• The lawyer looked impassively at him and said nothing.
• John’s face was impassive.

impassioned = showing or feeling very strong emotions

• The president made an impassioned speech to the people.
• An impassioned plea for justice.
• The lawyer made an impassioned argument in her defence.