The ancient script's inscrutable symbols resisted all attempts at decipherment, leaving linguists to debate whether it represented a lost language or a complex code.
这种古代文字的神秘符号使所有破译尝试都徒劳无功，让语言学家争论它代表的是一种失传语言还是复杂密码。
Which choice best defines “inscrutable”?
B — Impossible to understand; mysterious.. “inscrutable” means Impossible to understand; mysterious..
Which word means “Impossible to understand; mysterious.”?
D — inscrutable. “inscrutable” means Impossible to understand; mysterious..
inscrutable — Impossible to understand; mysterious.. In Chinese: 高深莫测的；不可理解的.
inscrutable is pronounced //ɪnˈskruːtəbl//.
The ancient script's inscrutable symbols resisted all attempts at decipherment, leaving linguists to debate whether it represented a lost language or a complex code. (这种古代文字的神秘符号使所有破译尝试都徒劳无功，让语言学家争论它代表的是一种失传语言还是复杂密码。)
mysterious, impenetrable, enigmatic — all close in meaning to inscrutable (Impossible to understand; mysterious.).
clear, transparent — each the opposite of inscrutable (Impossible to understand; mysterious.).
Yes. inscrutable 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.
in(不) + scrut(察看) → 看不透。