Gradually rhymes with:
individually, annually, conceptually, continually, contractually, factually, habitually, individually, intellectually, manually, mutually, perpetually, semiannually, sexually, virtually
Gradually sounds like:
gardella, gartley, girdle, girdley, gordillo, gradel, gradual, grathwohl, greatly, gredel, greedily, gretal, gretel, grethel, gridley, guardedly, guardiola