U-na-nim-i-ty, unfrydedd, cydsyniad
Un-com-fort-a-ble, anghysurus, digysur
Un-con-quer-a-ble, anorchfygol
Un-cul-ti-va-ted, anwrteithiol; diddysg; heb ei drin
Un-de-vi-at-ing, anwyrol, anymgrwydrol
Un-ex-pe-di-ent, anghyfleus, anaddas
U-ni-form-i-ty, unffurfiad, unweddiad
Un-ne-ces-sa-ry, afreidiol, diraid
Un-par-don-a-ble, anfaddeuadwy
Un-prof-it-a-ble, difudd, dielw