严重性的英文：
ponderance

She was not at all daunted by the size of the problem.
她一点也不为问题的严重性所吓倒。

No one comprehended the magnitude of the problem then.
当时无人认识到这一问题的严重性。

We have no regional surveillance mechanism which could have alerted us to the seriousness of the situation.
我们缺乏一个可针对这个情势的严重性提出告诫的区域监察机制。

One wondered if the doubters understand the depth of Wisconsin's economic quandary.
人们不禁要问，这些持怀疑论者是否真正理解威斯康星所面临的经济困境的严重性。

The seriousness of an error
错误的严重性

(degree of)importance,seriousness or influence
重要性、严重性或影响力（的程度）

Everybody recognized the seriousness of the situation.
谁都看出了局势的严重性。

To lessen the oppressiveness,trouble,or severity of.
减轻…的负担、麻烦或严重性

Failing to comprehend the full seriousness of the situation
未能充分理解形势的严重性

The case has assumed [presented] a serious aspect.
该案件已呈现出严重性。

ponder; reflect on, or reason about.
沉思；思考，反省，推理。

the literal meaning of ponder is

To reflect,ponder,or deliberate beforehand.
预先思考、深思或考虑

They are pondering moving their offices outside London.
他们正在考虑把办事处搬出伦敦。

I am pondering how to respond.
我在琢磨该怎样回答。