niceness

nouns

a courteous manner that respects accepted social usage
is derived from
is derived from
the quality of nice
is derived from
antonym
is a type of (narrower)
the quality of giving pleasure
"he was charmed by the sweetness of her manner"; "the pleasantness of a cool breeze on a hot summer day"
is an attribute of
pleasant or pleasing or agreeable in nature or appearance
"what a nice fellow you are and we all thought you so nasty"- George Meredith; "nice manners"; "a nice dress"; "a nice face"; "a nice day"; "had a nice time at the party"; "the corn and tomatoes are nice today"
the quality of being difficult to detect or analyze
"you had to admire the subtlety of the distinctions he drew"