Peart Peart, a. [A variant of pert, a.] Active; lively; brisk; smart; -- often applied to convalescents; as, she is quite peart to-day. [O. Eng. & Colloq. U. S.] There was a tricksy girl, I wot, albeit clad in gray, As peart as bird, as straight as bolt, as fresh as flowers in May. --Warner (1592).