in-festīvus, a, um, adj.,
not agreeable , not pleasant , inelegant (post-class.): subagresti ingenio et infestivo, Gell. 1, 5, 3.— Adv.: infestīvĭter , inelegantly : cetera vertit non infestiviter, i. e. quite elegantly , Gell. 9, 9, 9.