A gardener forgot to water a potted plant for a day during summer, what will happen to the plant ? Do you think it is reversible ? If yes, how ?

Explanation

If the gardener forgets to water the plant then leaves will dry up and fall down. If water is supplied at proper timing then plant will regain its position and will become normal.
But if watering is delayed then plant does not become normal and felling of leaves causes death of the plant.