[of ideas] fantastic (al);not an everyday thought; it is more than what the ordinary people can think of; unimaginably queer ❍ 此项建议～，恐怕不可取。This suggestion is fantastic.I am afraid it is unacceptable.
匪夷所思
out of the ordinary;unimaginable;queer;fantastic;bizarre
匪夷所思fěi yí suǒ sī
匪：通“非”，不是；夷：平常。不是一般人所想象的。比喻人的思想非常离奇。fantastic, of ideas unimaginably queer, No ordinary person could think of it.