a.

1. 使苦惱的；極痛苦的；難忍受的
   It is most excruciating to see your beloved throwing herself into the arms of another man.

   看見你的至愛投向別的男人的懷抱是件極痛苦的事。

2. 極度的

1. excruciate的動詞現在分詞、動名詞

adj.

1. intensely painful.
2. very embarrassing, awkward, or tedious.