不必要
Meanings
1
Describes something that is not required or can be done without. Used both as a noun and as a na-adjective.
Let's avoid unnecessary expenses.
I think that explanation is unnecessary.
Usage patterns
- 不必要な〈物〉an unnecessary thing/item
I got rid of everything that was unnecessary.
- 〈事〉が不必要になるfor something to become unnecessary
Thanks to the new technology, this task has become unnecessary.
- 不必要に〈動詞〉to do something needlessly/without cause
Please don't worry unnecessarily.