Yes! There’s still hope for a succulent that is bone dry. Unlike an overwatered succulent, there is a better chance of reviving one that is severely dehydrated.
Thoroughly soaking the soil with water is the first step to helping an underwatered succulent recover. From there, you must follow a watering schedule to ensure the plant gets the right amount of moisture. Just do not forget the cardinal rule of succulent care: water only when the soil is completely dry.