Antonyms for the phrase "worked something out" include "failed to resolve", "mismanaged," and "botched." When an individual or a team is unable to work something out, it means that there is a failure in problem-solving, communication, or decision-making. The inability to reach an agreement, compromise or resolution can lead to frustration and inefficiency. A situation that is mismanaged, on the other hand, might indicate poor planning or an inability to make the most of available resources. Similarly, when something is botched, it means that an attempt was made to work something out, but the outcome was unsuccessful due to a lack of skill, communication, or knowledge.