1. The plural of palatialness; the quality or state of being palatial (resembling or befitting a palace; grand, spacious, and luxurious).
Usage: Rare in standard usage; typically appears in formal or literary contexts.; Palatialness itself is an abstract noun formed from the adjective palatial.

Examples

• The palatialnesses of the various estates impressed the visiting dignitaries.
• Critics debated the different palatialnesses displayed across the mansion's wings.
• The architect sought to capture multiple palatialnesses in a single, cohesive design.
• Such palatialnesses were rare in the modest neighborhoods of the city.
• The hotel's palatialnesses extended from the lobby to the penthouse suites.