Definify.com
Webster 1913 Edition
Impertinence
1.
The condition or quality of being impertinent; absence of pertinence, or of adaptedness; irrelevance; unfitness.
2.
Conduct or language unbecoming the person, the society, or the circumstances; rudeness; incivility.
We should avoid the vexation and
impertinence
of pedants who affect to talk in a language not to be understood. Swift.
3.
That which is impertinent; a thing out of place, or of no value.
There are many subtile
impertinences
learned in schools. Watts.