adverb
- in a way that is absurd, ridiculous, or contrary to reason or common sense
Examples
- The claim that the Earth is flat is preposterously false.
- He was preposterously overdressed for a casual beach day.
- The price of that coffee is preposterously high.
- She preposterously suggested that we could finish the project in one hour.
- The movie's plot was preposterously unrealistic.
- He spoke preposterously fast, making it impossible to understand him.