Pettiness
Part of speech: noun
Definition: The quality of being petty. A petty behaviour, attitude, etc.
Example sentence: One of the qualities essential to writing exciting stories, whether for page or screen, is an ability to abandon one's morality. We simply cannot be good writers and good people. One must be able to access one's darkest self, one's venality and pettiness and murderousness.
Littleness
Part of speech: noun
Definition: The property of being little, smallness.