Absorbed in the specimen tray, she was oblivious to the tide creeping across the flats behind her.
她全神贯注于标本盘，浑然不觉身后潮水正漫过滩涂。
Which choice best defines “oblivious”?
C — Unaware; not noticing.. “oblivious” means Unaware; not noticing..
Which word means “Unaware; not noticing.”?
B — oblivious. “oblivious” means Unaware; not noticing..
oblivious — Unaware; not noticing.. In Chinese: 未察觉的；健忘的.
oblivious is pronounced //əˈblɪviəs//.
Absorbed in the specimen tray, she was oblivious to the tide creeping across the flats behind her. (她全神贯注于标本盘，浑然不觉身后潮水正漫过滩涂。)
unaware, heedless, inattentive — all close in meaning to oblivious (Unaware; not noticing.).
attentive, mindful — each the opposite of oblivious (Unaware; not noticing.).
Yes. oblivious 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.
obliv(遗忘) → 浑然不觉。