Posthumanism or post-humanism (meaning "after humanism" or "beyond humanism") is a term with seven definitions:
Antihumanism: any theory that is critical of traditional humanism and traditional ideas about humanity and the human condition.
Cultural posthumanism: a branch of cultural theory critical of the foundational assumptions of Renaissance humanism and its legacy. that examines and questions the historical notions of "human" and "human nature", often challenging typical notions of human subjectivity and embodiment and strives to move beyond archaic concepts of "human nature" to develop ones which constantly adapt to contemporary technoscientific knowledge.
Philosophical posthumanism: a philosophical direction which draws on cultural posthumanism, the philosophical strand examines the ethical implications of expanding the circle of moral concern and extending subjectivities beyond the human species