Impediment

[ im-ped-uh-muhnt ]

noun

1. a hindrance or obstruction in doing something.
2. a defect in a person’s speech, such as a lisp or stammer.

Examples of impediment in a sentence:

• In most romantic movies, there is always some sort of impediment that temporarily stops the guy from getting his dream girl. 
• The impediment that interferes with Gerald’s goal of running a successful diner is the lack of good employees.