조작이 매우 간편하거나 설계가 완벽하여 누구나 실수 없이 다룰 수 있는.
Designed to be so simple or well-constructed that it cannot be used incorrectly or fail to work.
예문:
"The new software features a foolproof interface that even a beginner can navigate."
"This digital camera is designed to be foolproof, with automatic settings for every lighting condition."
실패할 염려가 없이 확실하거나 완벽한.
Incapable of failing; certain to result in success or safety.
예문:
"The detectives thought they had a foolproof plan to catch the thief red-handed."
"No security system is entirely foolproof, but this one comes very close."