[id-ee-uh
t-proof] 
| built, organized, written, etc., in such a way as to be usable by or understandable to any person of average intelligence or skill: an idiot-proof camera. |
| id·i·ot-proof (ĭd'ē-ət-prōōf') adj. Slang Made or designed to be used or operated with very little risk of breakage or failure: "These point-and-shoot cameras are almost idiot-proof" (Donald H. Dunn). |