Prompted by the author's experience as a participant in an organized partnership with "Adivasis" in south Orissa since the early 1990s; Gayatri Spivak's intimation that the "subaltern can not speak" (Spivak, 1988) [and the "theoretical asphyxiation" of a subaltern politics ably contested in Parry's work as a "deliberate deafness to the native voice where it can be heard" (1987, p. 39)]; Dirlik's (1994) pertinent assertion that postcolonial theory reduces the material relations of colonial power to the rules of language (colonial discourse analysis); and the praxiological possibilities encouraged by a Gramscian-strain of subaltern studies (Sarkar, 2005), this paper addresses subaltern agency as expressed through social movement learning and the decolonization of physical/material space (land and forests in particular) in "Adivasi" contexts in south Orissa. Relying on data and associated reflections on emergent themes and understandings generated from researching "learning in Adivasi social movements" (research that commenced in 2006), this paper (a) addresses the methodological orientation of the research; (b) briefly elaborates on the colonization of land and forest spaces in "Adivasi" contexts; (c) examines social movement learning, specifically in relation to the issues and purposes of the movement and how learning contributes to the establishment of purpose, while providing some of the impetus for "Adivasi" agency in relation to the decolonization of these spaces; and (d) selectively engages theoretical considerations pertaining to radical adult education/learning and subaltern perspectives on learning in "Adivasi" movements. (Contains 6 footnotes.)