mal·a·pert (māl'ə-pûrt') adj. Impudently bold in speech or manner; saucy. n. An impudent, saucy person.
[Middle English, from Old French : mal-, mal- + apert, clever, alteration (influenced by apert, clever, saucy; see pert) of Latin expertus; see expert.] mal'a·pert'ly adv., mal'a·pert'ness n.