Some common reasons include: 1  a serious accident â such as a road accident, a severe head injury, a serious fall or severe burns. 2  a serious short-term condition â such as a heart attack or a stroke. 3  a serious infection â such as sepsis (blood poisoning) or severe pneumonia.
The definition of unnecessary is not needed. An example of something unnecessary is a bowl of sugar for cooking meatballs.
Definition of incumbent - necessary for (someone) as a duty or responsibility, (of an official or regime) currently holding office, (of a company) having a Definition of incumbent - necessary for (someone) as a duty or responsibility, (of an official or regime) currently holding office, (of a company) having a dictionary thesaurus