What it means
べくもない expresses that something is utterly impossible or that there is no way to do it. It is formed with the dictionary form of a verb and presents the impossibility as obvious, absolute, or beyond realistic consideration. The construction is strongly formal and literary, and it often appears in written arguments, commentary, and serious statements rather than casual conversation.
Usage note
べくもない is a fixed formal construction, so it should not be treated as an ordinary conversational negative. The polite counterpart べくもありません is possible, but it remains formal and does not make the expression casual.
How to use it
彼の決断を予測するべくもありません。
There is no way to predict his decision.
彼の決断を予測するべくもない。
There is no way to predict his decision.
Example sentences
限られた資料だけで、古代都市の全容を復元すべくもない。
There is no way to reconstruct the full picture of the ancient city using only the limited materials.
公開された記録だけで、事故の真相を完全に推測すべくもない。
It is utterly impossible to fully infer the truth of the accident from the publicly available records alone.
この短い報告書だけで、複雑な