| Englisch | Spanisch | |
|---|---|---|
| General | ||
| General | foolproof | infalible [adj] |
| Idioms | ||
| Idioms | foolproof | a prueba [adv] |
| Colloquial | ||
| Colloquial | foolproof | a prueba de bomba [adj] |
| Colloquial | foolproof | a prueba de bombas [adj] |
| Engineering | ||
| Engineering | foolproof | indesarreglable [adj] |
| Engineering | foolproof | a prueba de error [adj] |
| Engineering | foolproof | a prueba de impericia [adj] |
| Engineering | foolproof | sin peligro |
| Technical | ||
| Technical | foolproof | seguro [adj] |
| Technical | foolproof | a prueba de errores de manipulación [adj] |
| Mechanics | ||
| Mechanics | foolproof | infalible [adj] |
| Mechanics | foolproof | a toda prueba |
| Mechanics | foolproof | a prueba de tontos |
| Aeronautics | ||
| Aeronautics | foolproof | a prueba de falsas maniobras |
| Aeronautics | foolproof | sin peligro |
| Aeronautics | foolproof | que no falla |
| Englisch | Spanisch | |
|---|---|---|
| General | ||
| General | foolproof (device) | seguro [adj] |