Nouns

(n)sweet, sweetness, sugarinessthe taste experience when sugar dissolves in the mouth
(n)sweetness, sweetthe property of tasting as if it contains sugar
(n)bouquet, fragrance, fragrancy, redolence, sweetnessa pleasingly sweet olfactory property
(n)pleasantness, sweetnessthe quality of giving pleasure“he was charmed by the sweetness of her manner”, “the pleasantness of a cool breeze on a hot summer day”