Impedivity, a term commonly used in electrical engineering and physics, refers to the measure of impedance in a system. While there are no exact synonyms for the word "impedivity", several related terms can be used to convey a similar meaning. These include impedance, resistance, reactance, and electrical impedance. Impedance refers to the opposition encountered by an alternating current in a circuit, indicating the ratio of voltage to current. Similarly, the term resistance signifies the level of opposition to the flow of electric current. Reactance represents the imaginary component of impedance and measures the resistance to alternating current in circuitry. Consequently, these terms can be interchangeably used within the context of impedivity to convey comparable meanings.