bulletproof

• Also bulletproof were the windows, through which they watched Ham voiced the obvious. —  048 - The Derrick Devil
• Here in the United States, where the Wild West is a more common source of metaphors than is the graceful age of sail, we use the term bulletproof ' to mean roughly the same thing. —  The Word Detective
• Although all of Collins 'insights aren't bulletproof, the part about the most successful leaders who have ultimate faith in prevailing but also build a culture of confronting harsh reality rings so true. —  Traffick
• There currently are NO dualbanders on the market with a front end that is worth a crap - if ICOM could make one that was bulletproof, they'd get buyers in droves. —  eHam.net News
• You will never get a migration system that is "one-click", nor one that is "bulletproof" for the simple reason that both are too complex to perform globally. —  Planet Atheism

Used in the Same Context