You're asking whether well can be used attributively (as in "a well person") and not just predicatively ("she is well"). A great question!
The Cambridge Grammar of the English Language (CGEL) on page 560 includes well among those adjectives that do not appear attributively, with only a few exceptions. Here's what they wrote:
Well is used attributively in the construction He's not a well man, but in general it is excluded from attributive use: compare *his well mother.
The exception mentioned in CGEL is specific to the negative phrase is not a well X, where X refers to a type of animate being (typically a person, though an animal is also possible). Here are some examples from The Corpus of Contemporary American English (COCA):
- Just an opinion, but he's not a well person.
- Bear in mind how I'm not a well woman.
- A plan was also floated to run him as Taft's vice presidential candidate, on the presumption Taft was not a well man and quite likely to die in office.
- I'm not a well woman, Mary.
- Mr. Cheskis, that orange cat is not a well cat. It should go to the ASPCA.
And you will find a few similar exceptions, including phrases like "a well-woman visit" where well is apparently an attributive modifier in a larger attributive phrase, but in general well does not appear attributively. What's more, these few exceptions we do find aren't particularly common. If you'd like to remember the simplified rule never use well attributively, it would serve you just fine.
Your phrase ?a well-being person is unnatural. Well-being, generally speaking, will be taken as a single noun, and it won't be understood the way you intended.
In this answer, the * symbol indicates that a phrase is ungrammatical, while the ? symbol indicates that a phrase is questionable.
I have seen three films in the last week. I didn't like the first. I liked the second, but I liked the third best.
You can say I have seen three films in the last week. I liked the third best or most.
But in you statement, you are comparing two films. You say: I didn't like the first. I liked the second, but I liked the third best. So, I think, you should say: I liked the third much better or I liked the third better than the second.
Best Answer
Yes, "stupidest" is a real word and it is grammatically correct. I only found that out now as I researched this answer.
When I was in elementary school in the 1960's, I was also taught that one had to say:
In recent years, I hear people saying things like, "That's the stupidest thing I ever heard." Or, "Can anything be stupider than that?"
It seemed to me like slang, like people were just too lazy to speak correctly in the vernacular. However, when I looked it up on Google just now, I found the following in Grammarly:
For some two-syllable words, says Grammarly, we put more and most in front of them but for stupid we can use either method.
Comparative: er: tall, taller; stupid, stupider; more stupid
Superlative: est: tall, taller, tallest; stupid, stupider, stupidest; most stupid
According to Grammarly:
I'm not going to argue with Grammarly and standard dictionaries. In fact, I like the words stupider and stupidest. There's just nothing that expresses disgust for lack of thought better than those two words, in my opinion.