Unrecovered can be alternatively referred to as not retrieved, undiscovered, unattained, uncollected, unclaimed or unrecouped. These synonyms can exhibit different shades of meaning, depending on the context in which they are used. For instance, not retrieved may refer to an object or a piece of information that has not been obtained yet. Undiscovered may describe something that has not been found despite being searched for. Unattained may connote failure to achieve or reach a goal. Unclaimed may refer to something that belongs to someone but remains unclaimed. Unrecouped may describe a loss that cannot be recouped or compensated through any means.