Define the diminishing utility

Diminishing utility, also known as the law of diminishing marginal utility, is an economic principle that states that as a person consumes more units of a good or service, the additional satisfaction or utility they receive from each additional unit will decrease. In other words, the more of a particular item a person consumes, the less satisfaction they will get from consuming each additional unit. This concept plays a key role in understanding consumer behavior and decision-making.