fatu
foolish, silly, stupid
Usage
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fatuous
If you think something, such as a statement or idea, is fatuous, you consider it stupid or extremely silly; a fatuous hope is unrealistic.
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fatuity
a ludicrous folly
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fatuousness
a ludicrous folly
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infatuate
arouse unreasoning love or passion in and cause to behave in an irrational way
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infatuation
a foolish and usually extravagant passion or love or admiration
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