The American Heritage® Dictionary of the English Language, 4th Edition
adj. Impudently bold in speech or manner; saucy.
n. An impudent, saucy person.
the GNU version of the Collaborative International Dictionary of English
adj. Bold; forward; impudent; saucy; pert.
The Century Dictionary and Cyclopedia
Characterized by pertness or impudence; saucy; impudent; bold; forward.
n. A pert, saucy person.
Word Usage
"A child's outcry, more "malapert" than the priest, called the attention of the lingerers, and before any one knew, the passion of destruction had seized like a frenzy upon the people."