gloriousness means glory, the state or quality of being glorious.
Etymology
From glorious + -ness.
noun
- glory, the state or quality of being glorious“Wakes within, the ancient mind For a gloriousness defined: As she sought and knew your pleasure,-- Wiling with a dancing measure, Underneath your closed eyes She calls the shapes of clouded skies; White forms flushing hyacinthine Twine in curvings labyrinthine; Seem with godlike graceful feet, For such mazy motion meet, To press from air each lambent note, On whose throbbing fire they float; With ”