This is the 13872nd most frequent Korean word.
만성적으로
Chronically.
In this sentence, '만성적으로' is used to express a habitual or regular tendency of the subject being late.
그는 만성적으로 지각을 합니다.
He is chronically late.
Here, '만성적으로' describes the nature of the disease developing over a long time rather than abruptly.
이 병은 만성적으로 진행됩니다.
This disease progresses chronically.
'만성적으로' in this context emphasizes the ongoing and persistent state of fatigue felt by the individual.