Cultured rhymes with:
blanchard, butchered, captured, caricatured, decherd, denatured, echard, enraptured, featured, fractured, gestured, indentured, lectured, manufactured, natured, nurtured, orchard, pictured, prichard, pritchard, punctured, recaptured, remanufactured, restructured, richard, richerd, ruptured, sculptured, structured, sutured, textured, tortured, ventured, whichard
Cultured sounds like:
calderwood, cluttered, coulthard