It would be a mistake to understate the seriousness of the problem.

对该问题的严重性轻描淡写是错误的。

《牛津词典》

We need to recognize the seriousness of the problem.

我们需要认识到问题的严重性。

youdao

We should realize the seriousness of the problem now.

现在我们应该意识到问题的严重性。

youdao

One is lack of recognition of the seriousness of the problem.

VOA: special.2010.04.13

Unfortunately, the same survey showed some significant denial about the seriousness of the problem.

FORBES: Obesity: The New 'Just Say No' For 2013

Based on Southwest's first-quarter conference call, McAdoo said he was unsure management sees the seriousness of the problem.

FORBES: Magazine Article

Based on the Dallas-based company's first-quarter conference call McAboo is unsure management sees the seriousness of the problem.

FORBES: Southwest Stock Drops On Downgrade