Foolproof
Foolproof adjective - Not liable to failure.
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Synonyms for Foolproof
Trustworthy and foolproof are semantically related in reliable topic. In some cases you can use "Trustworthy" instead an adjective "Foolproof", when it comes to topics like infallible.
Trustworthy
Trustworthy adjective - Worthy of one's trust.
Foolproof and trustworthy are semantically related in reliable topic. You can use "Foolproof" instead an adjective "Trustworthy", if it concerns topics such as tried and trusted.
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Both words in one sentence
- A totally trustworthy chap convinces them to secure their fortune in a foolproof investment scheme— whoops, turns out he was a Con Man.
Cite this Source
Trustworthy and Foolproof. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/foolproof/trustworthy
Foolproof & Trustworthy. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/foolproof/trustworthy>.
Trustworthy or Foolproof. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/foolproof/trustworthy.
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