adj.荒谬的，不合理的，不能当真的

The idea that the earth is flat is utterly ludicrous.
地球是平的想法是极其荒谬的。
He wore a ludicrous tie to the formal event, completely clashing with his suit.
他在正式场合戴了一条可笑的领带，与他的西装完全不搭。
Her excuse for being late was so ludicrous that nobody believed her.
她迟到的借口太离谱了，以至于没有人相信她。
The notion that aliens built the pyramids is often dismissed as ludicrous.
外星人建造金字塔的说法常被认为是荒诞不经的。
His attempt to juggle five balls at once was ludicrous; he couldn't even manage three.
他试图同时耍弄五个球，这看起来十分滑稽，因为他连三个都控制不好。
The movie's plot was so ludicrous that it became unintentionally hilarious.
这部电影的情节如此荒唐，以至于不经意间变得非常好笑。
The claim that he could run a marathon without any training was ludicrous.
他说自己未经训练就能跑马拉松，这简直是无稽之谈。
The designer's latest collection featured ludicrously high heels that no one could walk in.
设计师最新系列里的高跟鞋高得离谱，没人能穿着走路。
It's ludicrous to suggest that all technology is detrimental to society.
认为所有技术对社会都有害的观点是荒谬的。
The thought of winning the lottery seemed so ludicrous to him that he never bought a ticket.
他觉得中彩票的想法太不切实际了，因此从未买过彩票。