| tried(verb, adjective, test, expert, reliable) |
| proven(verb, adjective, test, expert, reliable) |
| examined(verb, adjective, test, expert, reliable) |
| proved(verb, adjective, suitable, adequate, competent) |
| tried and true(expression, adjective, idiom, workable, proved) |
| well-versed(familiar, sophisticated, knowledgeable, skilled, competent) |
| attested(adjective, test, expert, reliable) |
| well-tried(adjective, test, expert, reliable) |
| assayed(noun, verb, experimented) |
| checked(noun, verb, experimented) |
| experimented(noun, verb, experimented) |
| measured(verb, adjective, measured) |
| qualified(adjective, test, expert, reliable) |
| verified(verb, experimented) |
| benchmarked(verb, adjective, measured, experimented) |
| certified(adjective, test, expert, reliable) |
| dependable(adjective, flawless, infallible, proven, time-tested) |
| determined(verb, experimented) |
| probed(noun, verb, experimented) |
| reliable(adjective, flawless, infallible, proven, time-tested) |