indifference curve

This term is a specialized technical expression used almost exclusively within microeconomics and consumer theory. It describes a state of equilibrium where a consumer derives equal satisfaction from different combinations of goods, meaning the consumer has no preference for one bundle over another.

In a graphical context, the slope of the curve represents the marginal rate of substitution. Because it is a technical term of art, it is rarely used in casual conversation and is typically found in academic textbooks, economic reports, or financial analyses.