Here are some examples of how "undesirable" is used:
* "The company was forced to shut down due to undesirable financial conditions." (meaning the financial conditions were bad and the company couldn't continue)
* "She felt a pang of fear at the prospect of being alone in the dark, a very undesirable feeling." (meaning fear is a negative feeling she wanted to avoid)
* "The boss's behavior created an undesirable work environment for everyone." (meaning the work environment was unpleasant and not conducive to good work)
The word can also be used to describe a person who is considered a nuisance or a threat to society:
* "The police were called to deal with the undesirable elements in the park." (meaning people causing trouble or breaking the law)
Overall, "undesirable" carries a strong negative connotation and is used to describe things or people that are not considered good or acceptable.