WordWeb Online

1. A message whose ingenuity or verbal skill or incongruity has the power to evoke laughter
   - wit, humor [US], humour [Brit, Cdn], witticism, drollness
    
2. The quality of being clever, amusingly ingenious.
   "And the result would be that he would kill the wittiness of the lines by burlesque.";
   - drollness

Type of: content, humorousness, jocoseness, jocosity, merriness, message, subject matter, substance

Encyclopedia: Wittiness