Negative adjective grammar


I wonder what is the difference between these two patterns when using negative
adjectives:

> これは面白いマンガじゃありません。  
>  これは面白くないマンガです。




# Japanese

今回の場合の1つ目の例である

> 面白い漫画じゃありません

の意味は、「面白い」と言う修飾子を「じゃありません」と言う単語によってその言葉の意味を **打ち消し** ています。

対して、2つ目の例である

> 面白くない漫画

と言うのは、打ち消しなどを使わず「面白くない」と言う単語を最初から使うことで、

「 **よりそれを直球に、わかりやすく** 」伝えています。

そして本題の2つの違いですが、こちらは前述したような単語の違いはあるものの、伝わる意味は殆ど同じです。 ただ、どちらかというと「 **面白くない漫画**
」のほうが「 **面白い漫画じゃない** 」よりも聞いたときにネガティブな印象を捉えます

# English

The first example in this case,

> 面白い漫画じゃありません

means the use of negation cancels out the word "面白い".

And in the second example in this case,

> 面白くない漫画

means by using the word "面白くない" from the beginning, instead of using
strikethroughs, etc., it conveys the message "more directly and plainly.

By using the word "面白くない" from the beginning without using strike-throughs,
etc., it conveys the message "more directly and clearly.

The difference between the two is that the meaning conveyed is almost the
same, despite the aforementioned differences in vocabulary.

And now to the main issue of the difference between the two. Although there
are some differences in vocabulary as mentioned above, the meaning conveyed
here is almost the same. However, if anything, "面白くない漫画" captures a more
negative impression when heard than "面白い漫画じゃない”.

If I said not fluent English please tell me




I guess, it's the same difference as the difference between "This isn't an
interesting manga" and "This is uninteresting manga". Or to put it differently
- the difference is the scope of negation - does it negate entire sentence
(first one) or adjective only (second one).

I don't know which one is more common/natural-sounding.

Update: answer by @Qwj_38 seems to suggest that これは面白くないマンガです。 conveys
stronger emotions. I guess, once again, the same as English. And at the same
time it's more natural

