Despite her extensive research, the young scientist remained diffident when presenting her findings to the senior committee.
尽管进行了广泛的研究，这位年轻科学家在向高级委员会展示她的发现时仍然缺乏自信。
Which choice best defines “diffident”?
A — Shy; lacking confidence.. “diffident” means Shy; lacking confidence..
Which word means “Shy; lacking confidence.”?
A — diffident. “diffident” means Shy; lacking confidence..
diffident — Shy; lacking confidence.. In Chinese: 羞怯的；缺乏自信的.
diffident is pronounced //ˈdɪfɪdənt//.
Despite her extensive research, the young scientist remained diffident when presenting her findings to the senior committee. (尽管进行了广泛的研究，这位年轻科学家在向高级委员会展示她的发现时仍然缺乏自信。)
timid, hesitant, self-effacing — all close in meaning to diffident (Shy; lacking confidence.).
confident, assertive — each the opposite of diffident (Shy; lacking confidence.).
Yes. diffident 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.
同 diffidence → 拘谨的。