inconceivable /ˌɪnkənˈsiːvəbəl/ adjective /ˌɪnkənˈsiːvəbəl/
adjective
Learner's definition of INCONCEIVABLE
: impossible to imagine or believe : not conceivable无法想象的；难以置信的 -
It's inconceivable (to me) that anyone could have survived such a violent crash.（我）难以置信有人能在如此猛烈的碰撞中存活下来。
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The fire caused an inconceivable amount of damage.大火造成了无法想象的巨大损失。
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After coming this far, to quit now would be inconceivable.已经干到了这个份儿上，现在要放弃简直无法想象。
— inconceivably
/ˌɪnkənˈsiːvəbli/ adverb