Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
gestŭōsus, a, um, adj. [2. gestus, I.], full of gestures, full of action (post-class.): manus argutae admodum et gestuosae, Gell. 1, 5, 2: puelli incessu, App. M. 10, p. 253; cf. gressus, id. ib. 11, p. 262, 18.