foolproof

fool proof |ˈfo͞olˌpro͞of ˈfulˌpruf | ▶adjective incapable of going wrong or being misused: a foolproof security system.

foolproof

fool |proof |ˈfuːlpruːf | ▶adjective incapable of going wrong or being misused: a foolproof security system.

foolproof

foolproof adjective a foolproof security system: infallible, dependable, reliable, trustworthy, certain, sure, guaranteed, safe, sound, tried and tested; watertight, airtight, flawless, perfect; informal sure-fire, idiot-proof, goof-proof; formal efficacious. ANTONYMS flawed.

foolproof

foolproof adjective we need a foolproof security system: infallible, never failing, unfailing, unerring, dependable, reliable, trustworthy, certain, sure, guaranteed, safe, sound, effective, efficacious, tried and tested; watertight, airtight, flawless, perfect; informal sure-fire. ANTONYMS flawed.

foolproof

f ó ol pr ò of 形容詞 〈方法 装置などが 〉 (簡単明瞭で )絶対 [成功 ]確実な, 間違いのない ; 完璧 （かんぺき ）な .