Adjectival means "working like an adjective" or "about adjectives".

Adjectival meansAdjectival的意思是 "working like an adjective"「像形容詞一樣運作」 or或 "about adjectives"「跟形容詞有關」。

An adjective is a word that tells you more about a noun, or about a word like she or it: in "black hat", black describes the hat; in "It makes her happy", happy describes her.

An adjective is a word形容詞是一種詞 that tells you more about a noun用來多說明一個名詞, or about a word like she or it或像she、it這樣的字: in "black hat"在"black hat"裡, black describes the hatblack在描述hat; in "It makes her happy"在"It makes her happy"裡, happy describes herhappy在描述her。

Though actually, it is not only single words that can do this job. A whole little group of words can sit in the adjective's place, and then we call that group adjectival — "the girl with red shoes", "a never-to-be-forgotten day".

Though actually不過其實, it is not only single words that can do this job能做這個工作的不只是單一個字。 A whole little group of words一整小群字 can sit in the adjective's place也可以放在形容詞的位置上, and then we call that group adjectival這時候我們就把那一群字叫做adjectival — "the girl with red shoes""the girl with red shoes"穿紅鞋的女孩, "a never-to-be-forgotten day""a never-to-be-forgotten day"永難忘懷的一天。

So adjectival is a grammar teacher's word. You use it when you want to talk about the job (describing a person or thing), not only the word class "adjective".

So adjectival is a grammar teacher's word所以adjectival是文法老師會用的字。 You use it你就用它 when you want to talk about the job當你想講的是那個「工作」 (describing a person or thing)（描述人或東西）, not only the word class "adjective"而不只是"adjective"這個詞類的時候。

It is formal. Ordinary conversation almost never needs it; adjective is the word students meet first, and for most days it is enough.

It is formal這是正式用語。 Ordinary conversation almost never needs it一般對話幾乎用不到它; adjective is the word students meet firstadjective才是學生最先學到的字, and for most days it is enough日常大部分時候用這個就夠了。