不可思议bùkě-sīyìinconceivable; unimaginable; unbelievableHSK 7-9Pronunciationbùkě-sīyìExample sentence他居然在三天内跑完了马拉松,真是不可思议。Tā jūrán zài sān tiān nèi pǎo wán le mǎlāsōng, zhēn shì bùkě-sīyì.He actually finished the marathon in three days — it's truly inconceivable.Read and choose an answerOne fixed sampleExplore a sample