inconceivable
adj
1 (infml 口) very difficult to believe 难以置信的
It seems inconceivable that the accident could have happened so quickly. 这一事故发生得这麽快, 简直不可思议.
2 that cannot be imagined; not conceivable 不可想像的; 匪夷所思的
the inconceivable vastness of space 宇宙难以想像的广漠.
Considering how recent these developments are, it is even more remarkable that as long ago as the 1960s, an Englishman, Leon Bagrit, was able to predict some of the uses of computers which we know today.