foolproof
/ˈfuːlpruːf/ (bre, ipa) · /ˈfuːlpruːf/ (ame, ipa) · /ˈfül-ˌprüf/ (ame, mw)
foolproof — adjective
- foolproofpositive
- more foolproofcomparative
- most foolproofsuperlative
1. designed or planned in such a simple, clear way that it is impossible for it to
designed or planned in such a simple, clear way that it is impossible for it to fail or be used incorrectly.
Diego said the camping stove was foolproof, so Arthur lit it without reading the instructions.
foolproof as complement after be
The museum's new touch-screen guide is designed to be foolproof for visitors of all ages.
foolproof for [someone] — target-user pattern
Mei-Lin's foolproof recipe for banana bread has won first prize at three village fairs.
Kwame insisted the folding kayak was foolproof, but Amara still watched a tutorial first.
The company claims their data-backup system is foolproof against accidental deletions.
- infallible
stronger and more formal; suggests something never makes a mistake, sometimes used for people in formal or humorous contexts
- fail-safe
emphasises a backup mechanism that prevents disaster if something goes wrong, rather than preventing the mistake itself
- guaranteed
focuses on the certainty of a successful outcome, not on the design's resistance to misuse
- reliable
broader meaning; describes trustworthiness over time, but does not imply that misuse is impossible
- risky
likely to fail or cause problems rather than safe from error
- flawed
having a weakness that can lead to failure or incorrect use
- unreliable
cannot be depended on to work correctly every time
文法句型
foolproof + noun
be + foolproof
foolproof against + noun
用法筆記
Only describes systems, plans, devices, or methods — never people. A person cannot be called foolproof. Frequently used in advertising and product reviews to emphasise ease of use.