The Collaborative International Dictionary of English v.0.48:
Pettiness \Pet"ti*ness\, n. The quality or state of being petty or paltry; littleness; meanness. [1913 Webster]WordNet (r) 3.0 (2006):
pettiness n 1: narrowness of mind or ideas or views 2: the quality of being unimportant and petty or frivolous [syn: pettiness, triviality, slightness, puniness] 3: lack of generosity in trifling matters [syn: pettiness, littleness, smallness]