Antonyms for the word "un-deserved" are easily describable as something well-earned, merited or deserving. If something is un-deserved, it means that the person has not earned it through their actions or hard work, and they do not deserve to receive what they have been given. By contrast, if something is well-deserved, it means that the person has worked hard and achieved success or recognition that they rightfully deserve. Other opposites for un-deserved could include "justified," "fair," "legitimate," "earned," and "merited." People who have received something undeservedly can feel guilty or unworthy, while those who have received something because they deserved it can feel proud and deserving.