Meaning and Usage
"無用" (むよう) means "useless" or "unnecessary." It is often used to describe things, actions, or advice that have no practical value or are not needed.
Common Contexts
You will see "無用" used in formal or written Japanese, such as in documents, instructions, or serious conversations. It can describe objects that are no longer needed, advice that is ignored, or efforts that are pointless.
Collocations and Patterns
- 無用になる: to become useless or unnecessary
- 無用の長物: literally "useless long thing," a common idiom for useless items
- 無用な忠告: unnecessary advice
Nuance and Register
"無用" carries a somewhat formal tone and is less casual than simply saying "いらない" (not needed). It can sound a bit strong or blunt, so be mindful of the context when using it.
Common Mistake
Learners sometimes confuse "無用" with "不要" (ふよう), which also means unnecessary. "不要" is more common in everyday conversation, while "無用" is more formal or literary.