1. Considerable

1.相當大的

Means large in size or amount. Something that is considerable is big.
指尺寸或數量大。相當大的東西是很大的。

I have considerably more work to do now, than I did in the past.
我現在要做的工作比過去多得多。

The family has a considerable amount of money.
這個家庭經濟富足。

2. Substantial
2.大量的

Means that something has of a lot of importance, size, or worth.
意味著某個東西很重要、無論是大小或價值。

This is a substantial problem, and we need to fix it right away.
這是一個嚴重的問題，我們需要馬上解決它。

That was a substantial amount of food.
那有相當多的食物。

3. Significant
3.重要的，有意義的

Means that something is very important or worthy of attention.
意味著某件事非常重要或值得關注。

This is a significant moment in our nation’s history.
這是我們國家歷史上的一個重要時刻。

I think the amount of work that needs to be done is significant.
我認為需要做的工作量很大。

4. Appreciable
4.可察覺的

Refers to something being important enough or large enough to be noticed. This word is almost always used to represent something in a positive way. Even if someone says that something is not appreciable, it means that something is not positive.
這個詞指的是足夠重要或足夠大以至于引起注意的事物。這個詞幾乎總是用積極的意味表示某事。即使有人說某件事不可感知，也意味著某件事不積極。

There is an appreciable amount of caring in the school.
在學校能感到很多的關懷。

I am appreciable of everything that you have done for me.
我清楚地了解對你為我所做的一切。

5. Special
5.特別的

Refers to something that is great, better or different than other things. This is a word that is almost always used in a positive way.
這個詞指的是比其他事物更大、更好或不同的事物。這是一個幾乎總是含積極意義的詞。

Mothers have a very special bond with their children.
母親與子女有著非常獨特的聯系。

We will have a special ceremony next week.
下周我們將專門舉行一個特別的儀式。

6. Serious

Refers to something that needs important attention or needs to be considered carefully.
指需要特別注意或需要仔細考慮的事情。

This is a situation of serious importance.
這是一個非常重要的情況。

We take all of this very seriously.
我們非常認真地對待這一切。

7. Exceptional
7.例外的

Refers to something that is unusual or not typical. This is usually used in a positive way. If it is not used in a positive way, then it is used to mean that something is large or of large importance.
指不尋常或不典型的事物。這通常使用褒義含義。如果它沒有使用褒義含義，那么它就意味著某個事物是巨大的或是重要的。

Your work is exceptional.
你的工作很出色。

This building is an exceptional milestone for our city.
這座建筑是我們城市的一個特殊里程碑。

8. Extraordinary
8.杰出的

Means that something is unusual or remarkable or incredible. This is a word that is usually used in a positive way, but it can also be used to say that something was shockingly bad.
意味著某件事是不尋常的、非凡的或難以置信的。這是一個通常使用褒義含義的詞，但也可以用來表示有些事情非常糟糕。

The artist’s work is extraordinary.
這位藝術家的作品超凡脫俗。

The party was an extraordinary disaster.
這次聚會非同尋常的糟糕。

Great
棒極了

Can also mean that the quality of something is better than normal. This usage of the word great is always positive.
也可能意味著某些東西的品質比正常的要好。“great”這個詞的用法總是褒義含義。

You did a great job on your presentation.

你的演講做得很棒。

It feels great to be home again.
回到家感覺真好。

This definition of great also has many synonyms.
偉大的定義也有許多同義詞。

9. Prominent
9.著名的

Refers to something being important or famous.
指一些重要或著名的事物。

He holds a prominent position in the community.
他在社區內占有重要地位。

This is a prominent restaurant.
這是一家有名的餐館。

10. Eminent
10.聲名顯赫的

Means that someone is important, famous, and respected in their profession (job).
意味著某人在他們的職業（工作）中是重要的、著名的和受人尊敬的。

She is an eminent professor in science.
她是一位杰出的科學教授。

This is one of the eminent companies in technology.

這是一家知名的科技公司。

（來源：滬江英語）