资料来源 : pyDict

哑,无言,沈默

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Dumbness \Dumb"ness\, n.
   The quality or state of being dumb; muteness; silence;
   inability to speak.

资料来源 : WordNet®

dumbness
     n : the quality of being mentally slow and limited [syn: {denseness},
          {slow-wittedness}]