niceness
  美好;精密;挑剔;謹慎
  Nice·ness n. Quality or state of being nice.
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  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]