鈍る

にぶる

to become blunt, to grow dull

JLPT N1

Details

Part of Speech:
Godan verb with 'ru' ending, Intransitive verb
Romaji:
niburu

Example Sentences

新しい包丁が鈍る前に使うと、切れ味が良くなる。

Using a new knife before it becomes dull will keep its sharpness.

この鉛筆は何度も使うと鈍るから、使い捨てにした方がいい。

This pencil becomes dull from being used many times, so it's better to use it once and then discard it.