虚无 xūwú nothingness Definitions Defs Origin Strokes Stroke Words Sentences Sents 虚无缥缈 xūwúpiāomiǎo illusory illusory; imaginary; fanciful虚无主义 xūwúzhǔyì nihilism 虚无假设 xūwújiǎshè null hypothesis null hypothesis (statistics)