1The politician's fatuous remarks about the economy were widely ridiculed by experts.
2Is it not fatuous to assume that a single policy can solve such a complex problem?
3Her fatuous grin and constant giggling made it difficult for the interviewer to take her seriously.
4Avoid making fatuous promises to your customers that you cannot keep, as this will damage your company's reputation.
5There is something fatuous about the notion that technology alone can solve the deep-seated social issues of our time.