His behavior in public scandalized everyone.

scandalized 是动词 scandalize 的过去式形式。scandalize 由名词 scandal（丑闻、令人震惊的行为）加上动词后缀 -ize 构成，意思是"使震惊、使愤慨"。scandalized 表示"使(人们)感到震惊"的行为。