Prefabricated rhymes with:
duplicated, implicated, medicated, replicated, syndicated, unsophisticated, adjudicated, allocated, bifurcated, communicated, duplicated, eradicated, extricated, implicated, lubricated, medicated, misallocated, pontificated, predicated, prognosticated, reallocated, reciprocated, replicated, sophisticated, suffocated, syndicated, truncated, unallocated, uncomplicated, uneducated, unsophisticated
Prefabricated sounds like:
perversity, prefabricate, prevaricate, prevaricated