"antonyms word" is 反義詞 the antonyms 宽 in Chinese has two different means 1. To describe a road or an aisle is broad In this example, we will use "宽" to describe the road. And the antonyms 宽 in Chinese will be "窄". 2. when we measure a box, we would say 长宽高 (长length, 宽width, 高height)

Allen, are you trying to say "a wordbook that contains antonyms"? It should be "反义词手册".

1 direct translation is"反义词的书（fan yi ci de shu）" if you mean a book just full of antonyms words,we usually say "反义词词典（fan yi ci ci dian）" That means antonyms words dictionary. 2 窄（zhǎi）