pre·sump·tu·ous
adjective/prɪˈzʌmptʃuəs/
/prɪˈzʌmptʃuəs/
[not usually before noun]- too confident, in a way that shows a lack of respect for other people
自负；冒昧；放肆 - Would it be presumptuous of me to ask to borrow your car?
我向你借车会不会太冒昧了？ - Isn’t it rather presumptuous of you to decide what he needs?
他需要什么得你来定，这难道不是自以为是吗？ - It would be presumptuous to assume she will accept the offer.
如果认为她会接受这个提议，那就太自以为是了。
Word OriginMiddle English: from Old French presumptueux, from late Latin praesumptuosus, variant of praesumptiosus ‘full of boldness’, from praesumptio ‘anticipation’, from the verb praesumere ‘anticipate’ (in late Latin ‘take for granted’), from prae ‘before’ + sumere ‘take’. - Would it be presumptuous of me to ask to borrow your car?