bombastic

那位政客的演讲充满了浮夸的承诺，却没有任何实质内容。

The politician's ___bombastic speech was full of grandiose promises but lacked substance.

这位首席执行官在产品发布会上的浮夸演示充满了没有数据支撑的宏大宣称。

The CEO's ___bombastic product launch presentation featured grand claims with no data to back them.

那位评论人的浮夸影评用了一堆夸张的最高级形容词来描述这部电影，让人觉得言不由衷。

The critic's ___bombastic review described the film in hyperbolic superlatives that felt insincere.