lightweight

1. ADJ Something that is lightweight weighs less than most other things of the same type. 重量輕的

...lightweight denim. …輕薄的粗斜紋棉布。

2. N-UNCOUNT Lightweight is a category in some sports, such as boxing, judo, or rowing, based on the weight of the athlete. (運動中的) 輕量級

By the age of sixteen he was the junior lightweight champion of Poland. 16歲時他已是波蘭少年輕量級冠軍。

3. N-COUNT If you describe someone as a lightweight, you are critical of them because you think that they are not very important or skilful in a particular area of activity. 無足輕重者[表不滿]

Brian considered Sam a lightweight, a real amateur. 布賴恩認為薩姆是個無足輕重的人，是個真正的業(yè)余選手。

4. ADJ Lightweight is also an adjective. 無足輕重的

Some of the discussion in the book is lightweight and unconvincing. 書中的一些討論無足輕重而且缺乏說服力。