The word adequate is used to show the satisfaction of some properties in terms of quantity and quality.
It is the time where you got what you want from the other person. You do not have any problem with the current situation. You are happy with the provided service. The word enough, sufficient are some of the synonyms for it.
The below image shows the meaning of adequate. In the image, the boy has enough food in front of him. It is adequate for him.
