Source : Webster's Revised Unabridged Dictionary (1913)

Tenderness \Ten"der*ness\, n.
   The quality or state of being tender (in any sense of the
   adjective).

   Syn: Benignity; humanity; sensibility; benevolence; kindness;
        pity; clemency; mildness; mercy.

Source : WordNet®

tenderness
     n 1: a tendency to express warm and affectionate feeling
     2: a pain that is felt when the area is touched [syn: {soreness}]
     3: warm compassionate feelings [syn: {tenderheartedness}]
     4: a positive feeling of liking; "he had trouble expressing the
        affection he felt"; "the child won everyone's heart" [syn:
         {affection}, {affectionateness}, {fondness}, {heart}, {warmheartedness}]
     5: a feeling of concern for the welfare of someone (especially
        someone defenseless) [syn: {softheartedness}]