SPECIAL TRUST. A special trust, is one where a trustee is interposed for the execution of some purpose particularly pointed out, and is not, as in the case of a simple trust, a mere passive depositary of the estate, but is required to exert himself actively in the execution of the settler's intention; as, where a conveyance is made to trustees upon trust to reconvey, or to sell for the payment of debts. 2 Bouv. Inst. n. 1896. See Trust.