Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
aggravate [ˈægrəveɪt] vt (situation) усугубля́ть (усугуби́ть*perf) (person) раздража́ть (раздражи́ть perf)
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: