not real, although seeming to be 虚假的;幻觉的;迷惑人的 an illusory sense of freedom 虚幻的自由感 Any power he may seem to have is purely illusory. 他貌似有权,但他的权力纯属虚幻。
Word Originlate 16th cent.: from ecclesiastical Latin illusorius, from Latin illus- ‘mocked’, from the verb illudere.