Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
punishing [ˈpʌnɪʃɪŋ] adj (fig, defeat, exercise) изма́тывающий
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
punish [ˈpʌnɪʃ]
vt (person) нака́зывать (наказа́ть*perf)
to punish sb for sth нака́зывать (наказа́ть*perf) кого́-н за что-н
this crime must be punished э́то преступле́ние должно́ бы́ть*нака́зано
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.