Synthesized rhymes with:
anglicized, fantasized, politicized, publicized, anglicized, capsized, circumcised, criticized, downsized, emphasized, excised, exercised, fantasized, full-sized, hypothesized, metastasized, midsized, ostracized, outsized, overemphasized, oversized, politicized, publicized, romanticized, undersized, unexercised
Synthesized sounds like:
sandquist, sandwiched, sanitized, santagata, scientist, smoothest, smudged, snatched, soundest, sundquist, syndicate, syndicated