preposterous
adjective/prɪˈpɒstərəs/
/prɪˈpɑːstərəs/
(formal)- completely unreasonable, especially in a way that shocks or annoys you synonym outrageous
- These claims are absolutely preposterous!
- It’s preposterous to suggest that everything was her fault!
- The whole idea sounds quite preposterous!
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- unusual in a way that is silly or that shocks you synonym outrageous
- The band were famous for their preposterous clothes and haircuts.
Word Originmid 16th cent.: from Latin praeposterus ‘reversed, absurd’ (from prae ‘before’ + posterus ‘coming after’) + -ous.
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preposterous