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fatuous + noun
fatuous 常修饰 remark、question、smile 等名词，语气比 silly 更正式。
He made another fatuous remark during the meeting.
他在会上又发表了一番愚蠢的言论。
愚蠢的；愚笨的
先理解核心含义，再看它在真实句子里的用法。
愚蠢的；愚笨的
devoid of intelligence; stupid or foolish
He made another fatuous remark during the meeting.
他在会上又发表了一番愚蠢的言论。
愚蠢可厌的；痴傻的；安于自身愚蠢的。
Obnoxiously stupid; vacantly silly; content in one's foolishness.
His fatuous remark made everyone in the meeting roll their eyes.
他在会上说的蠢话让所有人翻白眼。
It was fatuous of him to believe that such a plan would work.
他居然相信这种计划会奏效，真是愚不可及。
The article was full of fatuous predictions that ignored the real facts.
这篇文章满是不顾事实的愚蠢预测。
fatuous 常修饰 remark、question、smile 等名词，语气比 silly 更正式。
He made another fatuous remark during the meeting.
他在会上又发表了一番愚蠢的言论。
作表语时，主语常为 idea、question 等抽象名词。
The idea seems completely fatuous.
这个想法似乎十分愚蠢。
该句型强调某人的行为愚蠢；也可说 It is fatuous to do sth。
It was fatuous of him to ignore the warning signs.
他无视警告信号，真是愚蠢。
Not this
The report contains several fatuous errors.
Use this
The report contains several factual errors.
fatuous 意为“愚蠢的”，而 factual 意为“事实的”；两者拼写相近，但表达“事实错误”时应使用 factual，用 fatuous 会改变句意。
Not this
His decision fatuous.
Use this
His decision is fatuous.
汉语形容词可直接作谓语（如“这个决定很蠢”），但英语中形容词作表语时必须有系动词 be，因此遗漏 is 是错误的。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
愚蠢的笑容；傻笑
He gave a fatuous smile when asked about the mistake.
当被问及那个错误时，他傻笑了一下。
愚蠢的问题；无聊的问题
Stop asking fatuous questions and focus on the task.
别再问愚蠢的问题了，专心做事。
愚蠢的言论；无聊的话
Her fatuous remark annoyed everyone in the meeting.
她愚蠢的言论惹恼了会议上的每个人。
盲目的乐观；愚蠢的乐观
His fatuous optimism blinded him to the real risks.
他盲目的乐观使他看不到真正的风险。
Use fatuous naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
fatuous 里有 fat（肥），想象一个“肥头呆脑”的人，反应迟钝、愚笨。
语域：formal 常见场景：formal writing、literary criticism fatuous 是较正式或书面用词，通常形容愚蠢且缺乏判断力的人或言行，多用于正式评论或文学性描述，口语中较少见。
No common word rhymes with 'fatuous' (/ˈfætjuəs/). The words below all share the spelling ending -uous, but their stressed vowels differ. Continuous, ambiguous, arduous, and tenuous have a final /juəs/ sound; virtuous and sumptuous use /tʃuəs/. None is a true rhyme with fatuous.
Dictionary facts from ECDICT, WIKTIONARY.