Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
longŭlus, a, um, adj. dim. [longus], rather long: iter, Cic. Att. 16, 13, a.
Hence, adv.: longŭlē, rather far: haud longule ex hoc loco, Plaut. Rud. 1, 5, 8; id. Men. prol. 64; Ter. Heaut. 2, 2, 10; App. M. 9, p. 224.