niceness

Noun (3)

1. a courteous manner that respects accepted social usageSynonyms: politenessOpposite impolitenessType of courtesy, good mannersAttribute of polite, impolite
2. the quality of niceOpposite nastinessType of pleasantness, sweetnessAttribute of nice
3. the quality of being difficult to detect or analyze“you had to admire the subtlety of the distinctions he drew”Synonyms: subtletyType of difficulty, difficultness