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A sentence using the word preposterous?
The idea was so preposterous it was unlikely to have been invented.
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Preposterous in a sentence?
The "Hollow Earth" theory is just preposterous! The popularity of American situation comedies rely on their preposterous antics.
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In Definitions
What does preposterous mean?
Preposterous means absurd, incongruous, out of the question, highly unlikely, amazing, incredible, dubious, or simply ridiculous.