Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
intransĭtīvē, adv., v. intransitivus fin.
intransĭtīvus, a, um, adj. [2. intranseo], gram. t. t., intransitive, i. e. that does not pass over to another person, Prisc. p. 982 P.
Adv.: intransĭtīvē, intransitively, Prisc. p. 1134 P.