Definition of "antimodern"

The third option is also nervous about modernity but in an antimodern rather than postmodern way, that is, it is alarmed rather than playful […]

2005, John Durham Peters, Courting the Abyss‎, page 2

The antimoderns firmly believe that the West has rationalized and disenchanted the world, that it has truly peopled the social with cold and rational monsters which saturate all of space, that it has definitively transformed the premodern cosmos into a mechanical interaction of pure matters.

2012, Bruno Latour, We Have Never Been Modern, page 123