adj.很愚蠢的，(对某事)不懂的，无能的

She was completely clueless about the new software update; she hadn't even heard about it.
她对新的软件更新一无所知，甚至都没听说过。
When it comes to cooking, I'm absolutely clueless – I can barely boil an egg!
说到烹饪，我真是毫无头绪——连煮个鸡蛋都不太会！
Despite living in Paris for years, he remained clueless about the city's intricate subway system.
尽管在巴黎住了多年，他对这座城市的复杂地铁系统仍一窍不通。
The intern was clueless about office etiquette and kept making embarrassing mistakes.
实习生对公司礼仪一无所知，总是犯令人尴尬的错误。
She asked me for advice on investing, but honestly, I'm just as clueless as she is.
她向我请教投资建议，但说实话，我和她一样对此一无所知。
He walked into the meeting clueless about the agenda, having forgotten to read the email.
他走进会议室时对议程一无所知，因为他忘了阅读邮件。
They were completely clueless about the cultural norms in Japan, which led to several awkward encounters during their trip.
他们对日本的文化规范一无所知，这导致他们在旅行中遭遇了几起尴尬的情况。
Despite her extensive reading, she was still clueless when it came to understanding quantum physics.
尽管阅读广泛，她在理解量子物理学方面仍然一无所知。
His lack of experience in managing people made him clueless about how to handle the conflict within his team.
由于缺乏人员管理经验，他对如何处理团队内部冲突感到一无所知。
The tourists were completely clueless about the local customs and accidentally offended many villagers.
游客们对当地习俗一无所知，不经意间冒犯了许多村民。