grandiose
🇺🇸
/ˈɡrændiəʊs/
🇬🇧
/ˈɡrændiəʊs/
trying to seem very important or grand, but either not practical or more fancy than necessary
He made a grandiose plan to build a huge mansion but ran out of money.
他制定了一個建造巨大豪宅的宏偉計劃,但資金耗盡了。