No. 4,185 in Japanese
不可
"不可" means "not allowed" or "impossible."
In a sentence
この商品は返品不可です。
This product is non-returnable.
不可 is used here as a noun meaning 'not acceptable' or 'not possible.' It modifies 返品 (returns) indicating that returns are not allowed.
彼の提案は実現不可だと思います。
I think his proposal is unfeasible.
不可 is used here as an adjective to describe '実現' (realization), conveying the idea that it is impossible or unfeasible to realize.
安全対策を怠ることは不可です。
Neglecting safety measures is unacceptable.
不可 is used here to express prohibition or rejection, indicating that neglecting safety measures is not permissible.
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