Appamatta2 (adj.) [a + pamatta, pp. of pamadati] not negligent, i. e. diligent, careful, heedful, vigilant, alert, zealous M i.391 -- 92; S i.4; Sn 223 (cp. KhA 169), 507, 779 (cp. Nd1 59); Dh 22 (cp. DhA i.229); Th 2, 338 = upaṭṭhitasati Th A 239).