[Middle English, from Old French, mal-, mal-, + apert, clever, alteration (influenced by apert, clever, saucy; see pert), of Latin expertus; see expert.]
adjective
Impudently bold in speech or manner; saucy.
noun
An impudent, saucy person.
derivatives
maĺa·pert́ly
adverb
maĺa·pert́ness
noun
The American Heritage® Dictionary of the English Language, Fourth Edition