Abstract This paper examines the subjugation of Nigerian women with regard to how their political marginalisation constricts the public sphere, the resource centre of public opinion, which strengthens the ideals of democracy and good governance. The political marginalisation of women in Nigeria is a rectilinear upshot of their low participation in government and politics necessitated by patriarchy. This patriarchal practice has animated the urgency of expanded public sphere as well as feminism, an ideological, aesthetic and cultural movement, steeped in agitating for the rights of women and expanding the frontiers of their participation in the political process. In the political novel Anthills of the Savannah, which is to be considered in this paper, Chinua Achebe has deftly refracted the rise of new Nigerian women, who are generation changers. Beatrice represents Achebe's new women; her portraiture in the novel interrogates postcolonial Nigerian politics of disempowerment, marginalisation, shrunken public sphere and gendered space that occlude good governance.