Found 2 items, similar to niceness.
English → English (WordNet) Definition: niceness niceness n 1: a courteous manner that respects accepted social usage [syn: politeness] [ant: impoliteness] 2: the quality of nice [ant: nastiness] 3: the quality of being difficult to detect or analyze; “you had to admire the subtlety of the distinctions he drew” [syn: subtlety]
English → English (gcide) Definition: Niceness Niceness \Nice"ness\, n. Quality or state of being nice. [1913 Webster]