a. 幻影的, 错觉的, 迷惑人的

[ adj ]
based on or having the nature of an illusion
<adj.all>
illusive hopes of finding a better jobSecret activities offer presidents the alluring but often illusory promise that they can achieve foreign policy goals without the bothersome debate and open decision that are staples of democracy

Illusive \Il*lu"sive\, a. [See {Illude}.]
Deceiving by false show; deceitful; deceptive; false;
illusory; unreal.

Truth from illusive falsehood to command. --Thomson.