In Accommodating thrown-being in the world, I bring the facticity of an unchosen existence into focus for philosophical investigation. I place this feature of the human condition centrally within a conceptual framework from which I analyse it from an ontological and then a concrete perspective.It is the method I adopt to understand firstly what it means to be such a being and, secondly, to take this understanding into the context of the lived problems that surface on account of our initial unchosen lives. This juxtaposition uses the structure of the underlying ways we have our being to elucidate a possible approach, or ethos, to the seemingly intractable problems of difference, inequalities and contingent ways of being a human. My guiding objective in this thesis is to validate the rationale for proposing this ethos, which is to embrace the fact of our initial unchosen being as a way of nurturing receptivity to the equivalent fact of this unchosen aspect in other lives. The central question is that if I did not choose my life and you did not choose yours, how are we to accommodate this fact within philosophical thought? Is there something purposeful to be said of thrown-being that can illuminate my unchosen start in life, and can this explanatory light be extended to my relationship with others?I am not content to leave the idea of thrown-being in the background of philosophical thought as something 'given', instead in this thesis I treat it as a problem that must be approached in a positive way because we must all persist with an unchosen existence. I take the term 'thrown-being' from Heidegger's ontology, which has been seminal for the ideas in this thesis. It has allowed me to look at the human condition from within its ways of being, which is to understand it at the deepest level of how we navigate the fact of our existence. We are thrown-beings into a projective way of being.Therefore, any thinking we do about this being is always after the fact. I can only reflect on the fact of my unchosen initial life. It is this characteristic that justifies the use of ontology as part of my methodology in this thesis.After explaining Heidegger's existential analytic, I engage with Jean-Luc Nancy's development of the existential of being-with. This is provided as part of Nancy's thesis of being singular plural, which is a way of understanding that sense and meaning, as the foci of being, are made through the interplay between subjects who are themselves objects in a never-ending sequence of exchange and repetition. Meaning is made at the limit of sense and can identify a singular experience of being.This idea of thinking at the limit is useful to my argument that thrown-being gives us a meaning of homelessness, which because of our essential ontological nature is at the same time a shared meaning. However, it is only through authentic being that we can actually face this particular ii meaning of our facticity. It is also authenticity that affords the opportunity for responsibility. This proto-ethical position is...