The apparent stability of the ancient stone arch was illusory, as hidden cracks weakened its structure over centuries.
这座古老石拱门表面上的稳定性是虚幻的，因为隐藏的裂缝在几个世纪中削弱了其结构。
Which choice best defines “illusory”?
C — Deceptive; not real.. “illusory” means Deceptive; not real..
Which word means “Deceptive; not real.”?
B — illusory. “illusory” means Deceptive; not real..
illusory — Deceptive; not real.. In Chinese: 虚幻的；错觉的.
illusory is pronounced //ɪˈluːsəri//.
The apparent stability of the ancient stone arch was illusory, as hidden cracks weakened its structure over centuries. (这座古老石拱门表面上的稳定性是虚幻的，因为隐藏的裂缝在几个世纪中削弱了其结构。)
deceptive, chimerical, fallacious — all close in meaning to illusory (Deceptive; not real.).
real, genuine — each the opposite of illusory (Deceptive; not real.).
Yes. illusory is on the SAT Prep Difficult list — the higher-register words that decide the hard questions. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
illus(欺骗) → 假象的。