transcription, транскрипция: [ prɪpɒst(ə)rəs ]
If you describe something as preposterous , you mean that it is extremely unreasonable and foolish.
The whole idea was preposterous.
= ludicrous
ADJ [ disapproval ]
• pre‧pos‧ter‧ous‧ly
Some prices are preposterously high.
ADV : usu ADV adj / adv