morally good or generous in a way that is admired

高尚的，崇高的; 豁达的:

It's very noble of you to spend all your weekends helping the old folk.

你心地真好，所有周末都用来帮助老人。

noble ideals

崇高的理想

[only before noun] belonging to the nobility

贵族的，显贵的:

a member of an ancient noble family

古代贵族家庭成员

The Marquis would have to marry a woman of noble blood.

那位侯爵必须和有贵族血统的女子结婚。

something that is noble is very impressive and beautiful

宏伟的，堂皇的，壮丽的:

the old church with its noble tower

有宏伟塔楼的老教堂

noble gas / metal, [technical] a noble gas or metal is not affected chemically by other substances

惰性气体/贵金属

noble savage, [literary] someone who comes from a society that is less developed or interested in money than western countries, making them morally better than people who live in western countries

高尚的野蛮人

a member of the highest social class with a title such as 'Duke' or 'Countess'

贵族〔如公爵或女伯爵〕