プログレッシブ和英中辞典(第３版)の解説
ありうべき【有り得べき】
- それは有り得べきことだ
That's likely.／That's not impossible. - それは有り得べからざる話だ
That doesn't sound very likely to me.／That's an unlikely story!／〔皮肉に〕That's a likely story! - 有り得べからざる事件が起きた
There was 「an unforgivable accident [an accident of the sort which should never have occurred].