Which of the following describes something misleading or deceptive?

The term "illusory" pertains to something that is deceptive or misleading, often creating an illusion that can misrepresent reality. When something is described as illusory, it suggests that it may appear to be one way at first glance but is ultimately not as it seems. This aligns perfectly with the idea of something being misleading.

In contrast, "fortuitous" refers to something that happens by chance, often in a positive way, and doesn't carry a connotation of deception. "Nonplused" means to be perplexed or confused, which also does not relate to deception. Meanwhile, "inured" implies being accustomed to something, particularly something unpleasant, and does not convey misleading or deceptive qualities. Each of these terms has its own distinct meaning that does not align with the concept of misleading or deceitful representation as "illusory" does.