形容詞 descriptive:

1. serving to describe or inform or characterized by description
2. concerned with phenomena (especially language) at a particular period without considering historical antecedents
   同義詞：synchronic
3. describing the structure of a language

1. An identifying or descriptive tag attached to merchandise; a label.
   標簽，票簽貼在商品上的標明性或描述性的標簽; 標簽
2. A list or itemized display, as of titles, course offerings, or articles for exhibition or sale, usually including descriptive information or illustrations.
   一覽表名單或逐條列記的陳列，如題目、課程或者供展覽或出售的物品，通常包括描述性的信息或插圖
3. The report was so descriptive that I understood exactly.
   這報道寫得非常生動，我完全了解了。
4. He told a very descriptive account of his journey.
   他對旅行作了十分生動的敘述。

de.scrip.tive

adj.（形容詞）
Involving or characterized by description; serving to describe.
描述性的：包含描述的，以描述為特征的；用手描述的
Concerned with classification or description:
分類的，與分類有關(guān)的：
例句：
a descriptive science.
分類科學

Grammar
【語法】
Expressing an attribute of the modified noun, asgreen in green grass. Used of an adjective or adjectival clause.
描寫性的：表達被修飾名詞的屬性，例如greengrass（綠草） 中的 green（綠色的） 。用于形容詞或定語從句
Nonrestrictive.
無限制的，不加限定的

【引伸】
descrip.tively
adv.（副詞）
descrip.tiveness
n.（名詞）