Metastasized rhymes with:
criticized, romanticized, criticized, emphasized, hypothesized, ostracized, overemphasized, romanticized, anglicized, capsized, circumcised, criticized, downsized, emphasized, excised, exercised, fantasized, full-sized, hypothesized, midsized, ostracized, outsized, overemphasized, oversized, politicized, publicized, romanticized, synthesized, undersized, unexercised