Source : WordNet®

crybaby
     n 1: a person who lacks confidence, is irresolute and wishy-washy
          [syn: {wimp}, {chicken}]
     2: a person given to excessive complaints and crying and
        whining [syn: {whiner}, {complainer}, {moaner}, {sniveller},
         {bellyacher}, {grumbler}, {squawker}]