Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
unfulfilled [ʌnfulˈfɪld] adj (ambition, prophecy, desire) неосуществлённый; (promise, terms) невы́полненный; (person) нереализова́вшийся
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.