no rhyme or reason

• 不诗不文；不伦不类

no rhyme or reason的用法和样例：

例句

1. A person on a heath in raiment of morden cut and colours has more or less an anomalous look.
   一个人，穿着颜色和样式都时髦的衣裳，跑到荒原上去，总显得有些不伦不类。