(n.) The quality or state of being sunny.

Munsell chroma Technicolor acuity acuteness adroitness agility alertness aptitude aptness attention attentiveness auspiciousness beneficence benevolence benignancy benignity blare blaze blazing light blinding light blitheness blithesomeness braininess bright color bright light bright side brilliance brilliancy brilliant light burst of light cheer cheerfulness cheeriness cheery vein chroma chromatic color chromaticity clear thinking cleverness color color quality colorfulness colorimetric quality cool color dazzling light dexterity docility educability effulgence esprit eupeptic mien facility fair weather favorableness flair flamboyance flood of light fortunateness fulgor gaiety geniality genius giftedness gifts gladness gladsomeness glamour glare glaring light gloriousness glory good auspices good cheer good omen gorgeousness happiness heavenliness hopefulness hue impressionability intelligence intensity keen-wittedness keenness lightness luckiness luster malleability mental alertness mercurial mind moldability motivation native cleverness neutral color nimble mind nimble-wittedness nimbleness nous optimism plasticity pleasantness pliability promptitude promptness propitiousness prosperousness punctuality pure color purity quick parts quick thinking quick wit quick-wittedness quickness radiance radiancy radiant splendor ravishingness readiness ready wit receptivity refulgence refulgency resplendence resplendency richness rosy expectation sanguine humor sanguineness saturation savvy sharp-wittedness sharpness sleeplessness smartness smarts splendidness splendor splendorousness splendrousness sprightly wit streaming light sublimity sunniness sunny side susceptibility talent teachability teachableness tint tone trainableness value vividness wakefulness warm color willingness winsomeness