laborious russian

• усе́рдный

  diligent, industrious, painstaking, zealous, hard, laborious

• хло́потный

  troublesome, difficult, laborious, burdensome, intricate, painstaking

• трудоёмкий

  labour-intensive, laborious

• многотру́дный

  arduous, laborious, toilsome

• вы́мученный

  forced, laborious, laboured, ponderous

• копотли́вый

  slow, sluggish, laborious

• канителенный

  fussy, finicky, tedious, laborious, complicated

• утружда́ющий

  tiring, arduous, burdensome, onerous, laborious

• натужно

  with difficulty, strenuously, with effort, laboriously

• надсадно

  strainingly, laboriously, with a great effort, with a strain

• трудоёмкость

  labour-intensiveness, laboriousness

• трудоёмко

  labor-intensively, laboriously, with great effort, tediously