monstrous

工人们正在搬运一块巨大的岩石。

The workers are moving a ___monstrous rock.

他在会议上发表了骇人听闻的言论。

He made a ___monstrous comment during the meeting.

这起案件中的犯罪行为极其残忍。

The crime in this case was ___monstrous in its cruelty.