なくともよい
don't need to do something ...
JLPT
N2
Structure
N/ Na + でなくともよい
A + くなくともよい
V + なくともよい
Meaning
Expresses the meaning "it's unnecessary to do". It is a written form of 「なくてもいい」, hence in modern language, it's used less frequently outside of formal contexts.
父母
は
子供
のことをいつも
心配
しなくともよい
。
Parents don't have to worry about their children all the time.
首相
はこんなに
小
さい
事件
を
気
にかけなくともよい
。
The prime minister doesn't have to worry about such a small incident.
明日
は
会議
に
参加
に
行
かなくともよい
。
You don't have to go to the meeting tomorrow.
