Source : Webster's Revised Unabridged Dictionary (1913)

Peevishness \Pee"vish*ness\, n.
   The quality of being peevish; disposition to murmur; sourness
   of temper.

   Syn: See {Petulance}.

Source : WordNet®

peevishness
     n 1: an irritable petulant feeling [syn: {irritability}, {crossness},
           {fretfulness}, {fussiness}, {petulance}, {choler}]
     2: a disposition to exhibit uncontrolled anger; "his temper was
        well known to all his employees" [syn: {temper}, {biliousness},
         {irritability}, {pettishness}, {snappishness}, {surliness}]