Which adjective is the most suitable to express "rich" for a person? In Mandarin there are a variety of adjectives that express &quot;rich&quot; - 富，丰富，肥，充实，阔，丰盛，浓郁，富足，etc...
Some of them I believe don't fit in a person; 肥 is an equivalent to &quot;fertile&quot; in English, 浓郁 is &quot;dense&quot;, etc...
But I can't decide which is the correct adjective among 富，丰富，富足，丰盛, etc...
The example:

年轻中国女人很___。
为什么华人那么___?

In these cases, which adjective is the most suitable to express &quot;rich&quot;?
Also, in these cases (irrespective of the term &quot;rich&quot;), how can I know which adjective is the most suitable in a context?
年轻中国女人很___。
  
  为什么华人那么___?


In your context, among those words you listed,  only 富 is appropriate. 富 means 富有；有钱；having lots of money. 

肥 can also fit, but it will mean fat, which would be an insult. 

阔 might be also ok, meaning "having lots of money or able to spend lots of money". But it's not that common as 富 or 有钱.

The rest 丰盛，浓郁，富足 are usually used to describe things, conditions and etc.