causing very great pain, difficulty, worry, damage, etc.; very serious

a severe chest infection/leg injury/toothache 十分严重的胸腔感染／腿伤／牙痛

This is a school for children with severe learning difficulties. 这是一所为有严重学习障碍的孩子设立的学校。

In parts of Africa there is a severe food/water shortage. 非洲的一些地方存在严重的粮食／水资源短缺问题。

There is expected to be a severe frost tonight. 今晚预计会出现严重的霜冻。

Severe cutbacks in public spending have been announced. 已经宣布对公共开支进行大幅度削减。

extreme or very difficult

This will be a severe test of our strength. 这将是对我们实力的严峻考验。

not kind or showing sympathy; not willing to accept other people's mistakes or failures

The headteacher spoke in a severe voice. 校长说话的口吻很严厉。

The president is currently facing severe criticism. 总统目前正遭到严厉的批评。

There are severe penalties for failing to declare all your income to the Inland Revenue. 未向税务机关申报个人全部收入会受到严厉的处罚。

completely plain and without decoration

She wore a severe black dress, and plain black shoes. 她穿了一件朴素的黑连衣裙和一双普通的黑鞋子。

I don't like these severe modern buildings. 我不喜欢这些没有任何装饰的现代建筑。