You can use ecstatic to describe reactions that are very enthusiastic and excited. For example, if someone receives an ecstatic reception or an ecstatic welcome, they are greeted with great enthusiasm and excitement. They gave an ecstatic reception to the speech = rapturous
If you are ecstatic, you feel very happy and full of excitement. His wife gave birth to their first child, and he was ecstatic about it They were greeted by the cheers of an ecstatic crowd. = delirious + ecstatically ec·stati·cal·ly We are both ecstatically happy