vanishingly small/improbableextremely small or unlikely 极小的/极不可能的
The chances of dying under anaesthetic are vanishingly small.
因麻醉死亡的概率是极小的。
Examples from the Corpus
vanishingly small/improbable• If the object is very distant, linearmagnification becomes vanishingly small.• On average, the chances of weediness emerging by accident are vanishingly small.• Statistically, however, the chance of avoiding synonymsaltogether is vanishingly small.• But even if this conclusion is not justified, we can say that infalliblebeliefs must have vanishingly smallcontent.• It would need a gigantic and vanishingly improbableleap across genetic hyperspace.• For just the same reason, it is vanishingly improbable that exactly the same evolutionarypathway should ever be travelled twice.