We've found 5 phrases for reliable (0.116 seconds):

bolt bucket »    A machine, especially an automobile. Implies that the machine is clunky or unreliable.

bulletproof »    Reliable, infallible, sturdy or error-tolerant.

copper-bottomed »    Thoroughly reliable.

quick-and-dirty »    Done or constructed in a hasty, approximate, temporarily adequate manner, but not exact, fully formed, or reliable for a long period of time.

you can't judge a book by its cover »    It is not possible to make reliable judgments about things or people by considering external appearances alone.

New:  We also know Zip Codes FYI!