せいだい盛大seidai
1.

Characterized by a large scale and impressive grandeur, often used to describe events or gatherings that are both elaborate and showy in nature.

2.

Referring to occasions marked by a vibrant and bustling atmosphere, typically indicating a significant turnout or activity that conveys a sense of success and prosperity.

3.

Descriptive of ceremonies or celebrations that are not only sizable but also visually striking and festive, highlighting their importance and grandeur.

4.

Depicting a situation or event that exudes vitality and enthusiasm, often associated with positive energy and an uplifting spirit among participants.

Example:

盛大な溜息をつきながら、テーブルの上にどさどさとパンを置き、椅子にどっかりと腰掛ける。