idiotsäker

== Swedish == === Etymology === idiot (“idiot”) +‎ säker (“proof”) === Adjective === idiotsäker (not comparable) (colloquial) foolproof ==== Declension ==== === References === “idiotsäker”, in Svensk ordbok [Dictionary of Swedish] (in Swedish) “idiotsäker”, in Svenska Akademiens ordlista [Wordlist of the Swedish Academy] (in Swedish)