What is Bare Trust?

Legal Definition
A bare trust (sometimes referred to as a simple trust or mandatory trust) is a trust in which the beneficiary has a right to both income and capital and may call for both to be remitted into his own name.

A simple trust requires that any income it receives be distributed within the tax period it is earned. This is opposite to a complex trust where the funds are not required to be paid out right away, so it can keep gaining income without having to distribute the money or property.
-- Wikipedia
Legal Definition
When a trustee gives assets to the beneficiary and has no other duty. AKA naked trust and simple trust. Refer to active trust.