Dictionary & Thesaurus

niceness

1.	(noun) the quality of nice
	Related Words: pleasantness, sweetness
	Antonyms: nastiness

2.	(noun) the quality of being difficult to detect or analyze; "you had to admire the subtlety of the distinctions he drew"
	Synonyms: subtlety
	Related Words: difficultness, difficulty

3.	(noun) a courteous manner that respects accepted social usage
	Synonyms: politeness
	Related Words: courtesy, good manners