Degrowth

From Wikipedia:

Degrowth is an academic and social movement critical of the hegemony of economic growth perpetuated by capitalism, and calls for an equitable and democratically-led downscaling of production and consumption in industrialised countries as a means to achieve environmental sustainability, social justice and well-being.

Degrowth is an anti-consumerist concept that opposes capitalism's growth-at-all-costs mindset. It denies that we live in a world with infinite resources, and advocates for more mindful use of resources (be it natural, economic, human or otherwise).