the combination of ignorance and arrogance.
the result of being ignarrogant.
Even though the politicians realized that information from the new biometric database could be leaked, they reasoned "why would anyone want to hack it?"
Thus demonstrating both their ignorance of the possible risks, and their arrogance to think that no one would seek to exploit those risks. What irresponsible ignarrogance!
offensive display of superiority or self importance whilst lacking general knowledge and awareness
Ignarrogance and rudeness are training wheels on the bicycle of life; for weak people who cannot keep their balance without them.