까마득해요 · 까마득했어요 · 까마득한 (+noun)
very far off, distant (in time or space); hopeless, at a loss
Example
학교를 졸업한 게 까마득한 옛날 같아요.
Graduating from school feels like ages ago.
Word parts
A stronger cousin of 아득하다 'distant, faint'.
Good to know
Also means 'clueless what to do': 앞날이 까마득해요 'The future looks hopeless.'
Related words