👉 Untenensible, also known as a non-value-added service or non-value-added product, is an item that adds value but is not essential to the overall functionality of a system. It can be described as a feature that does not add any additional value or utility beyond what it already provides. Examples include software updates, security patches, and software upgrades. In contrast, valuable services (like customer service, data analysis, or financial advice) are essential for making systems more useful to users.