英[\'kɔ:stɪklɪ]
美[\'kɔstɪklɪ]
She was caustically brilliant, yet totally loyal, unpretentious, human and tolerant.
她这个人才气逼人，可是绝对忠诚可靠，而且毫不做作，有人情味和宽容心。
柯林斯例句
Detective Sun laughed caustically.
孙侦探冷笑了一下.
互联网
He addressed her caustically.
他用挖苦的语气对她说.
互联网
"he addressed her caustically"