Why is the adjective "nonsensical" not used in the following sentence? And why is the noun form correct? Why do we never use an article before the word "nonsense"? Isn't it a noun? has it something to do with the fact that it's uncountable?
"The translation of the instructions was so poor they were just nonsense."
"The story he told us was nonsense."
What about the word "luxury"? What is the difference between "a luxurious car" and "a luxury car"? I believe the latter one is more common for some reason I can't find. I mean "luxury" is a noun, why do we use it to modify another noun when we can use the adjectival form "luxurious"?
I hope I was able to convey what I mean well enough. Thanks in advance.