An heir apparent is an heir who (short of a funamental change in the situation) cannot be displaced from inheriting; the term is used in contrast to heir presumptive, the term for a conditional heir who is currently in line to inherit but could be displaced at any time in the future. Today these terms are most commonly used for heirs to hereditary titles, particularly monarchies. It is also used metaphorically to indicate someone who is the apparent "anointed" successor to any position of power, e.g., a political or corporate leader.