The quality of being cheerful and dispelling gloom:
— Flowers added a note of cheerfulness to the drab room.

synonyms: cheer, sunniness, sunshine.

Roget 827: pleasure, gratification, enjoyment, fruition; oblectation, delectation, delection^†; relish, zest; gusto etc. (physical pleasure) 377; satisfaction etc. (content) 831; complacency.    well-being; good etc. 618; snugness, comfort, ease; cushion etc. 215; sans souci [Fr.], without worry, mind at ease.    joy, gladness, delight, glee, cheer, sunshine; cheerfulness etc. 836.    treat, refreshment; amusement etc. 840; luxury etc. 377.    mens sana in corpore sano [Lat.] [Juvenal], a sound mind in a sound body.    happiness, felicity, bliss; beatitude, beautification; enchantment, transport, rapture, ravishment, ecstasy; summum bonum [Lat.]; paradise, elysium etc. (heaven) 981; third heaven^†, seventh heaven, cloud nine; unalloyed happiness &c.; hedonics^†, hedonism.    honeymoon; palmy days, halcyon days; golden age, golden time; Dixie, Dixie's land; Saturnia regna [Lat.], Arcadia^†, Shangri-La, happy valley, Agapemone^†.    ... show more

Roget 831: content, contentment, contentedness; complacency, satisfaction, entire satisfaction, ease, heart's ease, peace of mind; serenity etc. 826; cheerfulness etc. 836; ray of comfort; comfort etc. (well-being) 827.    reconciliation; resignation etc. (patience) 826.    [person who is contented] waiter on Providence.    ... show more

Roget 836: cheerfulness etc. adj.; geniality, gayety, l'allegro [Fr.], cheer, good humor, spirits; high spirits, animal spirits, flow of spirits; glee, high glee, light heart; sunshine of the mind, sunshine of the breast; gaiete de coeur [Fr.], bon naturel [Fr.].    liveliness etc. adj.; life, alacrity, vivacity, animation, allegresse^†; jocundity, joviality, jollity; levity; jocularity etc. (wit) 842.    mirth, merriment, hilarity, exhilaration; laughter etc. 838; merrymaking etc. (amusement) 840; heyday, rejoicing etc. 838; marriage bell.    nepenthe, Euphrosyne^†, sweet forgetfulness.    optimism etc. (hopefulness) 858; self complacency; hedonics^†, hedonism.    ... show more

Dutch: vrolijkheid
Polish: pogodność

A feeling of spontaneous good spirits:
— His cheerfulness made everyone feel better.

synonym: blitheness.

Polish: pogoda