Vegetal rhymes with:
digital, interdigital, sagittal, capital, congenital, deshotel, digital, extramarital, genital, intercapital, interdigital, marital, nonvolatile, occipital, orbital, parietal, pivotal, premarital, sagittal, skeletal, surrebuttal, versatile, volatile
Vegetal sounds like:
vastly, vastola, vestal, vogtle