Cursoriness
The Century Dictionary and Cyclopedia
noun.
The quality of being cursory; slightness or hastiness of view or examination.
the GNU version of the Collaborative International Dictionary of English
noun.
The quality of being cursory; superficial performance.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
The state of being
cursory
Word Usage
"If for no other reason than the cursoriness of the official investigation, questions persisted."