a clownish face滑稽的脸
characterized by clownish absurdity滑稽可笑的
ADJ（形容词） If you describe a person's appearance or behaviour as clownish, you mean that they look or behave rather like a clown, and often that they appear rather foolish. 小丑似的
He had a clownish sense of humour.
他有着滑稽的幽默感。