1. [ adjective ] relating to or of the nature of a legal trust (i.e. the holding of something in trust for another)
Synonyms: fiducial

"a fiduciary contract" "in a fiduciary capacity" "fiducial power"

Related terms: trust trust
2. [ noun ] a person who holds assets in trust for a beneficiary

"it is illegal for a fiduciary to misappropriate money for personal gain"

Related terms: person trustee liquidator administrator executor steward conservator