Definition of "jungli"

You are a jungli. We ought to send you to England to be civilized.

1964, Cecilie Leslie, The Rope Bridge, page 28

[T]he legendary Adivasi leader Jaipal Singh Munda who came to represent the tribals not just of his native plateau, but also of all of India, said,As a jungli, as an Adibasi, I am not expected to understand the legal intricacies of the Resolution.

2018, Vaijayanta Anand, Geeta Balakrishnan, Purnima George, Community Practices in India: Lessons from the Grassroots, page 66