You can use acute to indicate that an undesirable situation or feeling is very severe or intense.
severe
The war has aggravated an acute economic crisis.
这场战争加剧了一场严峻的经济危机。
The report has caused acute embarrassment to the government.
这份报告使政府极其尴尬。
The labour shortage is becoming acute.
劳动力短缺的问题变得严峻了。
If a person's or animal's sight, hearing, or sense of smell is acute, it is sensitive and powerful.
When she lost her sight, her other senses grew more acute.
失明以后,她的其他感官变得更加敏锐了。
An acute accent is a symbol that is placed over vowels in some languages in order to indicate how that vowel is pronounced or over one letter in a word to indicate where it is stressed. You refer to a letter with this accent as, for example, e acute. For example, there is an acute accent over the letter 'e' in the French word 'café'.