fi·​du·​cia·​ry | \ fə-ˈdü-shē-ˌer-ē How to pronounce fiduciary (audio) , -shə-rē, -ˈdyü-, fī- \

Definition of fiduciary

 (Entry 1 of 2)

: of, relating to, or involving a confidence or trust: such as
a : held or founded in trust or confidence a fiduciary relationship a bank's fiduciary obligations
b : holding in trust
c : depending on public confidence for value or currency fiduciary fiat money


plural fiduciaries

Definition of fiduciary (Entry 2 of 2)

: one that holds a fiduciary relation or acts in a fiduciary capacity

Did you know?

Fiduciary relationships often concern money, but the word fiduciary does not, in and of itself, suggest financial matters. Rather, fiduciary applies to any situation in which one person justifiably places confidence and trust in someone else and seeks that person's help or advice in some matter. The attorney-client relationship is a fiduciary one, for example, because the client trusts the attorney to act in the best interest of the client at all times. Fiduciary can also be used as a noun for the person who acts in a fiduciary capacity, and fiduciarily or fiducially can be called upon if you are in need of an adverb. The words are all faithful to their origin: Latin fīdere, which means "to trust."

Examples of fiduciary in a Sentence

Recent Examples on the Web: Adjective Gender equity benefits women–and the economy Failure to apply the gender equity lens to economic data is fiduciary irresponsibility. Katica Roy, Fortune, 4 Aug. 2022 Consult with VCs and investment banks that will hold a fiduciary obligation not only for the next round but also for the next five years. Rotem Gantz, Forbes, 2 Aug. 2022 Enhancing their appeal has been a standard known as the fiduciary rule, which legally requires such advisers to put client interests first at all times and generally avoid conflicts of interest. Randall Smith, WSJ, 8 May 2022 After a bench trial in November 2019, the judge found for Hudson on three counts, including breach of oral contract and theft, but did not rule in his favor on two counts involving breach of fiduciary duty and fraud. Los Angeles Times, 27 July 2022 Lee brought claims against him for legal malpractice and breach of fiduciary duty. Winston Cho, The Hollywood Reporter, 27 July 2022 This is not evil, nor unethical, and is something any management team with a fiduciary duty would seek to do. Sean Stein Smith, Forbes, 24 July 2022 In this little video the confident and smooth Ramaswamy is almost mesmerizing in creating his own upside down world regarding fiduciary duty and ESG. Robert G. Eccles, Forbes, 5 July 2022 Whether the scope of the investigation will finally seek answers to longstanding trustee questions regarding potential conflicts of interest, fiduciary breaches and violations of law regarding its investments, the pension won’t say. Edward Siedle, Forbes, 5 Jan. 2022 Recent Examples on the Web: Noun After all, isn't attaining growth and defending value the purpose of a true fiduciary? Sharon Wagner, Forbes, 1 Aug. 2022 The Petitioner is qualified under the old probate code and a fiduciary under the present code and therefore an interested person. Bill Bowden, Arkansas Online, 20 May 2022 The duty of confidentiality requires a fiduciary to keep confidential any information which the disclosure of may be harmful or embarrassing to a beneficiary, even if that information has been disclosed by the beneficiary elsewhere. Matthew Erskine, Forbes, 25 Jan. 2022 Nussbaum suggests that the government could designate a suitable animal-welfare agency to act as a fiduciary for specific animals, which would allow them to be represented in court. Lawrence Wright, The New Yorker, 28 Feb. 2022 But now, Native leaders say that their younger shareholders place higher value on their culture and see the corporations as a potential source of Indigenous identity and belonging, with responsibilities that extend beyond the fiduciary. Nathaniel Herz, Anchorage Daily News, 16 Dec. 2021 Curtis also can no longer serve as a trustee or act as a fiduciary. Kolbie Peterson, The Salt Lake Tribune, 15 Dec. 2021 The filing requests that Jason Rubin, a licensed professional fiduciary, be appointed as the new conservator of Britney Spears' estate. Victoria Albert, CBS News, 27 July 2021 The goal of a fiduciary is to act in the best interest of their client. Andrew Rosen, Forbes, 8 Oct. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fiduciary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fiduciary


circa 1641, in the meaning defined above


1631, in the meaning defined above

History and Etymology for fiduciary

Adjective and Noun

Latin fiduciarius, from fiducia confidence, trust, from fidere — see fidelity

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Time Traveler for fiduciary

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The first known use of fiduciary was in 1631

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Dictionary Entries Near fiduciary



fiduciary bond

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Statistics for fiduciary

Last Updated

13 Aug 2022

Cite this Entry

“Fiduciary.” Dictionary, Merriam-Webster, Accessed 16 Aug. 2022.

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More Definitions for fiduciary


fi·​du·​cia·​ry | \ fə-ˈdü-shə-rē, -ˈdyü-, -shē-ˌer-ē How to pronounce fiduciary (audio) \
plural fiduciaries

Legal Definition of fiduciary

 (Entry 1 of 2)

: one often in a position of authority who obligates himself or herself to act on behalf of another (as in managing money or property) and assumes a duty to act in good faith and with care, candor, and loyalty in fulfilling the obligation : one (as an agent) having a fiduciary duty to another — see also fiduciary duty at duty, fiduciary relationship — compare principal



Legal Definition of fiduciary (Entry 2 of 2)

1 : of, relating to, or involving a confidence or trust a guardian acting in his fiduciary capacity
2 : of or relating to a fiduciary or the position of a fiduciary a fiduciary bond

History and Etymology for fiduciary


Latin fiduciarius, from fiducia trust, transfer of a property on trust

More from Merriam-Webster on fiduciary

Nglish: Translation of fiduciary for Spanish Speakers

Britannica English: Translation of fiduciary for Arabic Speakers Encyclopedia article about fiduciary


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