тягостно
oppressively, heavily, grievously, painfully, burdensome, hard
Example:Ему было тягостно осознавать свою ошибку.
It was painful for him to realize his mistake.
oppressively, heavily, grievously, painfully, burdensome, hard
Ему было тягостно осознавать свою ошибку.
It was painful for him to realize his mistake.