boringly russian

• ску́чно

  boringly, tediously

• нудно

  tediously, boringly, monotonously

  it is boring, it is tedious, it is dreary

• душни́ть

  to be stuffy; to make the air oppressive

  to be boringly oppressive; to nag

Examples

• Он длинно и скучно рассказывал о поездке.

  He talked at length and rather boringly about the trip.

• Фильм оказался посредственно снятым и скучным.

  The film turned out to be mediocre and boringly made.