Bright.
Luminescent.
fastidious
One of the best words to describe Jean Stapleton might be talented. You could also use the word funny to describe her.
Men
Meticulous.
Enigmatic. Holy
Glassy may be one word you could use to describe a diamond gemstone.
firm, soft, lumpy, hard, flat
Artisticly is not really a word, though people use it to describe how someone did something in an artful way. You could also use artfulness.
The adjective form of the word credit is creditable. If you are looking for an adjective that would describe the word credit, you could use good or bad.
You could use term, which however can be more than one word.You can also describe the word in question such as "noun", "verb", "preposition", etc.
Opaque For more information: http://en.wikipedia.org/wiki/Opacity_(optics)