Entry 1 sense Webster, 1913 Intempestivity /ĭntĕmpĕstĭʹvĭtē/ · In·tem·pes·tiv·i·ty · IPA /ɪntɛmpɛˈstɪvɪti/ 01 n. Unseasonableness; untimeliness. 1. Unseasonableness; untimeliness.[Obs.]