pŏsĭtīvus, a, um, adj. [id.], positive, in gram. I.Settled by arbitrary appointment or agreement (opp. to natural): nomina non positiva esse sed naturalia, Gell. 10, 4in lemm.—II. Positivum nomen. 1.An adjective in the positive degree, Cledon. p. 1893 P.—2.A substantive, Macr. S. 1, 4, 9.