Most weatherworn is a phrase used to describe something that has been worn down by the elements over time. Some possible synonyms for this phrase include weatherbeaten, battered, faded, aged, worn-out, and dilapidated. Each of these words describes something that has undergone a significant amount of wear and tear due to exposure to weather and other environmental factors. Other possible synonyms might include weather-ravaged, weathered, beaten down, and worn to a frazzle. Ultimately, the choice of synonym will depend on the context and tone of the writing, as well as the precise meaning that the author wants to convey.