The word "undue" means excessive or inappropriate. It can be used to describe something that is too much, beyond what is necessary or appropriate, or not within reasonable limits. For example, if someone receives undue praise for a job well done, it means they are receiving more praise than the task warrants. Similarly, if someone experiences an undue amount of stress in their life, it means that the level of stress they are experiencing is excessive or unreasonable. In summary, "undue" refers to something that goes beyond what is reasonable, necessary, or appropriate.