無用
Meanings
Means that something serves no useful purpose or will not achieve anything. Often somewhat written or forceful compared with everyday 無駄.
Further resistance is futile.
There are several useless white elephants on his desk.
unnecessary; needless; not needed
Used when something is not required or there is no need for it. Common in set phrases such as 心配無用 and ご心配は無用です.
There is no need to worry.
No reservation is needed for admission.
having no business here; unrelated; unauthorized
Stiff or sign-like use for people who have no relevant business, connection, or permission. Modern notices more often use 関係者以外 or 無断.
The gate had a sign saying, "No unauthorized persons allowed."
forbidden; prohibited; not to be done
Mostly appears in fixed compounds and notices such as 他言無用, 問答無用, and 天地無用; it is not a general replacement for 禁止.
Please do not tell anyone else about this matter.
The box is clearly marked "Do not turn upside down."
Usage patterns
- 無用の〈物〉a useless, worthless ⟨thing⟩
Let's get rid of these useless items already.
- 〈事〉は無用だthere is no need for ⟨something⟩
There's no need for excuses about this matter.
- 〈人〉以外立入無用no entry for anyone other than ⟨person⟩
There was a sign saying no entry except for staff.