uncontrollably russian

• неудержи́мо

  irresistibly, uncontrollably

• захлёбывающий

  choking, spluttering, gasping, sobbing uncontrollably

• заходи́вшийся

  having started crying hysterically, convulsed with crying, sobbing uncontrollably

• угора́ющий

  cracking up, in hysterics, laughing uncontrollably

Examples

• Вдруг Мэри неудержимо захихикала.Suddenly, Mary started giggling uncontrollably.