This is the 2305th most frequent Korean word.
힘들
"힘들" is not a standalone word. Likely part of "힘들다," meaning "to be difficult" or "to be tough."
힘들 is used to describe the difficulty of completing the given task.
이 일이 너무 힘들어요.
This work is very difficult.
힘들 is used to express the emotional or physical strain experienced during the weekend.
지난 주말은 정말 힘들었어요.
Last weekend was really tough.
힘들 is used to describe the challenging nature of perceiving the situation.