〜べからざる: meaning and usage

How to form it

• verb (dictionary form)+べからざる+noun

How it is used

Written and old-fashioned: before a noun, 'that must not or cannot be A-ed', mostly in set phrases such as 「欠くべからざる」 (indispensable) and 「許すべからざる」 (unforgivable). At the end of a sentence, 「〜べからず」 is used.

Examples

1. 親の愛情は子供にとって欠くべからざるものだ。

   The love of parents is indispensable for children (must not be lacking).

2. 彼は会議の場で、言うべからざることを口にしてしまった。

   At the meeting, he said something that should never have been said.

3. これは見過ごすべからざる重大な問題だ。

   This is a serious problem that must not be overlooked.