Definition of "fiduciary" in English

adjective

1. (law) Relating to an entity that owes to another good faith, accountability and trust, often in the context of trusts and trustees.

   • a fiduciary contract
   • a fiduciary duty

2. Pertaining to paper money whose value depends on public confidence or securities.

3. (nonstandard) Accepted as a trusted reference such as a point, value, or marker; fiducial.

noun

1. (law) One who holds a thing in trust for another.

2. (theology) One who depends for salvation on faith, without works; an antinomian.