un·im·ag·i·na·ble
adjective/ˌʌnɪˈmædʒɪnəbl/
/ˌʌnɪˈmædʒɪnəbl/
(formal)- impossible to think of or to believe exists; impossible to imagine
难以置信的；不可想象的 - unimaginable wealth
难以想象的财富 - This level of success would have been unimaginable just last year.
如此成就在去年都是不敢想象的。
Oxford Collocations DictionaryUnimaginable is used with these nouns:- pain
- suffering
- wealth
- …
- unimaginable wealth