There are various synonyms for the phrase "well spent", and they all indicate effective and worthwhile use of a particular resource, whether it be time, money, or effort. Some of the commonly used synonyms include "worthwhile", "productively utilized", "wisely invested", "fruitful", "meaningful", "value-added", "profitable", "rewarding", "beneficial", "advantageous", and "useful". To describe something as "well spent" implies that the results or outcomes have met or exceeded expectations, and that the resource has been fully utilized and not wasted or squandered. Choosing the right term to describe a well-spent resource can lend a sense of satisfaction and pride in having made a smart and effective decision.