Being in a certain state or having certain qualities, or a certain constitution, temperament, temper, etc.; circumstanced; constituted: most frequently used in composition: as, well-conditioned; ill-conditioned.Existing under or subject to conditions; limited by conditions; dependent.In metaphysics, placed or cognized under conditions or relations; relative.n. In metaphysics, collectively, the universe as existing and known under conditions or limits: always with the definite article: opposed to the unconditioned or absolute.