pleasantness

Noun

pleasantness (usually uncountable, plural pleasantnesses)

1. (usually) The state or quality of being pleasant.
   • I thoroughly enjoyed the amenity of the clean mountain air in the summer.
   • If this is sound, the pleasantness of pleasure can no longer be our guide; the higherness of the higher pleasure must have the decisive word — hedonism has committed suicide.1929, Robert Mackintosh, Values, a Bird's Eye Survey, page 40
2. (countable, usually) Something pleasant.
   • […] to destroy the affections of truth, and thereby the pleasantnesses and happinesses of heaven […]1813, Emanuel Swedenborg, The Apocalypse, or, Book of revelations, explained

   Synonyms:

   agreeableness, amiability, douceur, sweetness