Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
unkempt [ʌnˈkɛmpt] adj (appearance) неопря́тный*неопря́тен (hair, beard) растрёпанный*растрёпан
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: