n.
1.
Lustre, splendor, brilliancy, radiance, resplendence, effulgence, light, sheen, luminousness, luminosity, shine, glow, blaze, gloss, burnish, gleam, gleaming, beam, beaming, flash, flashing, flame, flaming, sparkle, sparkling.
2.
Clearness, transparency, lucidity, lucency, translucency, limpidity, cloudlessness, uncloudedness.
3.
Acuteness, ingenuity, sagacity, acumen, astuteness, discernment, mother-wit, quick parts.
4.
Cheerfulness, cheeriness, merriment, liveliness, happiness, sprightliness, vivacity, vivaciousness, animation, geniality, lightness.