un·i·ma·gined /ˌʌnɪˈmædʒɪnd◂/adjectiveadj [usually before noun] literary
so good, large, great etc that it is hard to imagine 〔好、大等得〕无法想象的,想象不到的
Examples from the Corpus
unimagined• a place of unimagined beauty• Behind the honeysuckle and the hollyhocks there was revealed a life of hitherto unimagined degradation.• Stepan is falling ill without knowing it; his unspoken, unimagined destination is delirium and death.• Others see a new golden age of business and technology that will lift the market to unimagined heights.• Commentators are a maligned lot and deserve some credit for disseminating enthusiasm for sport on a hitherto unimagined scale.