Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
flustered [ˈflʌstəd] adj смущённый*смущён
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
fluster [ˈflʌstər]
vt (person) смуща́ть (смути́ть*perf)
n
in a fluster в смуще́нии
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.