When a product, a theory, or a process "stands the test", it shows that it is reliable, effective, and successful. To convey this idea, words or phrases such as "passes muster", "proves its worth", "meets the challenge", or "endures scrutiny" can be used. "Withstands the test", "survives inspection", "proves its mettle", or "holds up under examination" are also alternatives that indicate the durability and strength of the tested entity. In professional, academic or scientific writing, synonyms for "stands the test" are useful to maintain variety and precision in language, and to help readers understand the author's meaning with clarity.