Foolproof
Foolproof adjective - Not liable to failure.
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Synonyms for Foolproof
Guaranteed and foolproof are semantically related. in infallible topic. In some cases you can use "Guaranteed" instead an adjective "Foolproof".
Guaranteed
Foolproof and guaranteed are semantically related. You can use "Foolproof" instead an adjective "Guaranteed".
Nearby Word: guarantee
Mutual synonyms
Related pairs
- sound and foolproof
- sound and guaranteed
- clear and foolproof
- clear and guaranteed
- safe and foolproof
- safe and guaranteed
- secure and foolproof
- secure and guaranteed
- positive and foolproof
- positive and guaranteed
- perfect and foolproof
- perfect and guaranteed
- established and foolproof
- established and guaranteed
Both words in one sentence
- Sorcerists can stave off the effects of the Malediction by suiting up in Powered Armor called Molds, but even these aren't foolproof, and using sorcery with a damaged Mold is guaranteed to turn the wielder into a nightmarish demon.
Source: Body Horror / Anime and Manga
Cite this Source
Guaranteed and Foolproof. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/foolproof/guaranteed
Foolproof & Guaranteed. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/foolproof/guaranteed>.
Guaranteed or Foolproof. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/foolproof/guaranteed.
Google Ngram Viewer shows how "foolproof" and "guaranteed" have occurred on timeline