hilarious
/hɪˈleərɪəs/adjective
1- extremely amusing极有趣的, 引人发笑的：
her hilarious novel.
她那逗人发笑的小说。
1.1
- boisterously merry欢闹的, 兴高采烈的：
an old man was in hilarious conversation with three young men.
一位老人在和三位年轻人兴高采烈地交谈。
派生词
hilariously
adverb词源
early 19th cent.: from Latin hilaris （from Greek hilaros 'cheerful'） + -OUS. The sense 'exceedingly amusing' dates from the 1920s.