Definition of "rumbunctious"

There was close by me a window, and, noiselessly as possible, I slid back a small piece, thereby rousing the light-sleeping mistress of the canary, who sharply requested it be closed again; [...] the other lady smiled despairingly, and signed me to obey, which I reluctantly did by closing the glass; but the shutter proved rumbunctious, and for no effort of mine would again move out of his groove; [...]

1862 January, “A Canal-boat Sketch”, in Duffy’s Hibernian Magazine. […], volume I (New Series), number 1, Dublin, London: James Duffy, […], page 92

She was placid, stately and Juno-esque, soft-toned in her trance utterances, but she could become powerful in her office, an imposing presence. Sometimes a rumbunctious, chaffing persona emerged and was a little over the top for genteel spinsters to tolerate.

2015, Molly Whittington-Egan, “Preface: Into the Cabinet”, in Mrs Guppy Takes a Flight: A Scandal of Victorian Spiritualism, [Castle Douglas, Dumfries and Galloway, Scotland]: Neil Wilson Publishing, page x