IPA: /ɡrænˈdiːəsɪti/
KK: /ɡrænˈdiːəsɪti/
The quality of being overly impressive or extravagant, often in a way that seems excessive or unrealistic.
His grandiosity made it difficult for him to connect with others on a personal level.
Grandiosity → It is formed from "grandis" (meaning large or great) and the suffix "-osity" (meaning the quality of). The word "grandiosity" refers to the quality of being grand or having an exaggerated sense of one's importance or abilities.
Think of 'grand' to remember that 'grandiosity' means having a quality of being grand or larger than life.