| fiducial(adjective, belief) | |
| trustee(noun, person, administrator) | |
| credible(adjective, reasonable, belief, realistic, authentic) | |
| depositary(noun, person) | |
| believable(adjective, realistic, authentic, trustworthy, credible) | |
| reliable(adjective, reasonable, belief, realistic, authentic) | |
| trustworthy(adjective, reasonable, belief, realistic, authentic) | |
| property(noun, adjective) | |
| belongings(noun, adjective) | |
| guardian(noun, person) | |
| trusty(adjective, reasonable, realistic, authentic, satisfying) | |
| conceivable(reasonable, realistic, authentic, satisfying, trustworthy) | |
| colorable(reasonable, realistic, authentic, satisfying, trustworthy) | |
| tenable(reasonable, realistic, authentic, satisfying, trustworthy) | |
| unquestionable(reasonable, realistic, authentic, satisfying, trustworthy) | |
| plausible(reasonable, realistic, authentic, satisfying, trustworthy) | |
| administrator | |
| agent | |
| antinomian | |
| authentic(adjective, reasonable, realistic, satisfying, trustworthy) |
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| APA | Smart Define. (2016). fiduciary thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fiduciary/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fiduciary thesaurus" https://smartdefine.org/fiduciary/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, fiduciary thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fiduciary/thesaurus/synonyms>. |
| MLA | Smart Define. "fiduciary thesaurus" 4 January 2016. Web. 21 September 2026. <https://smartdefine.org/fiduciary/thesaurus/synonyms> |