Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
high-level [ˈhaɪlɛvl] adj (talks etc) на вы́сшем у́ровне
high-level language (COMPUT) язы́к*высо́кого у́ровня
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: