The word "replenished" means to refill or restore something to its original state. Antonyms for the word "replenished" are those words that denote depletion or reduction. These antonyms include words such as depleted, exhausted, drained, and impoverished. When something is depleted, it means that it has been fully used up or exhausted, rendering it empty or without value. Similarly, when something is said to be exhausted or drained, it means that all its energy or resources have been used up, leaving nothing behind. Finally, when something is impoverished, it means that it has been deprived of its natural resources or value, rendering it useless.