This is the 6932nd most frequent Korean word.
잔인한
Cruel.
'잔인한' is used here as an adjective to describe the noun '장면' (scenes), indicating 'brutal or cruel scenes'.
그 영화는 정말 잔인한 장면이 많았어요.
That movie had a lot of really brutal scenes.
'잔인한' here modifies '농담' (joke), showing an act that is emotionally brutal or harsh.
그는 잔인한 농담을 해서 모두를 놀라게 했습니다.
He made a cruel joke that shocked everyone.
'잔인한' describes '현실' (reality), implying that the situation is harsh or unkind.