착실해요 · 착실했어요 · 착실한 (+noun)
steady, diligent, reliable
Example
그 학생은 착실해서 숙제를 한 번도 빠뜨리지 않아요.
That student is so diligent that she has never missed a homework assignment.
Word parts
착 attach+실 real
Literally 'firmly attached to what's real'—solid and dependable.
Good to know
Not related to native 착하다 'kind'; 착실하다 means steady and dependable, not nice.
Related words