unsubstantial
副词: unsubstantially 名词: unsubstantiality
unsubstantial基本解释
adj.不实在的;脆弱的;缺乏事实根据的
unsubstantial同义词
unsubstantial英英释义
"as insubstantial as a dream""an insubstantial mirage on the horizon"